Actions Runner fails on IPv6 only host

Describe the bug
On an IPv6 only host a self-hosted action runner fails to register itself as online due to a failed network request to a URL with an IPv4 only address.

Context: Many hosting companies are now charging for IPv4 addresses (most recently AWS), so having IPv6-only self-hosted runners is desirable from an operational cost perspective.

To Reproduce

1. Configure a self-hosted action-runner on an IPv4/v6 host.
2. Reconfigure the host to be IPv6 only.
3. Try to start the action-runner.
4. Runner fails to register and reports error in the logs (below)

Expected behavior
I expected the runner to start and register as online.

Runner Version and Platform

Version of your runner?
2.312.0

OS of the machine running the runner? OSX/Windows/Linux/...
Linux (Debian 12)

What's not working?

Start-up and registration flow requires IPv4 to connect to a URL (pipelinesghubeus4.actions.githubusercontent.com)

nslookup for host indicates no IPv6 address;

$ nslookup pipelinesghubeus4.actions.githubusercontent.com
Server:  UnKnown
Address:  fdc9:993e:6df:0:3e9e:c7ff:fe92:2ee8

Non-authoritative answer:
Name:    pipelinesghubeus4.actions.githubusercontent.com
Address:  20.232.252.48

Job Log Output

Runner_20240208-075819-utc.log, potential token redacted;

[2024-02-08 07:59:02Z INFO GitHubActionsService] Starting operation Location.GetConnectionData
[2024-02-08 07:59:02Z WARN GitHubActionsService] Attempt 1 of GET request to https://pipelinesghubeus4.actions.githubusercontent.com/{{REDACTED}}/_apis/connectionData?connectOptions=0&lastChangeId=1500696579&lastChangeId64=1500696579 failed (Socket Error: NetworkUnreachable). The operation will be retried in 11.01 seconds.
[2024-02-08 07:59:11Z WARN GitHubActionsService] Attempt 2 of GET request to https://pipelinesghubeus4.actions.githubusercontent.com/{{REDACTED}}/_apis/connectionData?connectOptions=0&lastChangeId=1500696579&lastChangeId64=1500696579 failed (Socket Error: NetworkUnreachable). The operation will be retried in 12.97 seconds.
[2024-02-08 07:59:12Z WARN GitHubActionsService] Attempt 2 of GET request to https://pipelinesghubeus4.actions.githubusercontent.com/{{REDACTED}}/_apis/connectionData?connectOptions=0&lastChangeId=1500696579&lastChangeId64=1500696579 failed (Socket Error: NetworkUnreachable). The operation will be retried in 12.91 seconds.
[2024-02-08 07:59:13Z WARN GitHubActionsService] Attempt 2 of GET request to https://pipelinesghubeus4.actions.githubusercontent.com/{{REDACTED}}/_apis/connectionData?connectOptions=0&lastChangeId=1500696579&lastChangeId64=1500696579 failed (Socket Error: NetworkUnreachable). The operation will be retried in 12.829 seconds.
[2024-02-08 07:59:24Z WARN GitHubActionsService] Attempt 3 of GET request to https://pipelinesghubeus4.actions.githubusercontent.com/{{REDACTED}}/_apis/connectionData?connectOptions=0&lastChangeId=1500696579&lastChangeId64=1500696579 failed (Socket Error: NetworkUnreachable). The operation will be retried in 17.574 seconds.
[2024-02-08 07:59:25Z WARN GitHubActionsService] Attempt 3 of GET request to https://pipelinesghubeus4.actions.githubusercontent.com/{{REDACTED}}/_apis/connectionData?connectOptions=0&lastChangeId=1500696579&lastChangeId64=1500696579 failed (Socket Error: NetworkUnreachable). The operation will be retried in 18.057 seconds.
[2024-02-08 07:59:25Z WARN GitHubActionsService] Attempt 3 of GET request to https://pipelinesghubeus4.actions.githubusercontent.com/{{REDACTED}}/_apis/connectionData?connectOptions=0&lastChangeId=1500696579&lastChangeId64=1500696579 failed (Socket Error: NetworkUnreachable). The operation will be retried in 18.337 seconds.
[2024-02-08 07:59:41Z ERR  GitHubActionsService] Attempt 4 of GET request to https://pipelinesghubeus4.actions.githubusercontent.com/{{REDACTED}}/_apis/connectionData?connectOptions=0&lastChangeId=1500696579&lastChangeId64=1500696579 failed (Socket Error: NetworkUnreachable). The maximum number of attempts has been reached.
[2024-02-08 07:59:41Z INFO GitHubActionsService] Finished operation Location.GetConnectionData
[2024-02-08 07:59:41Z INFO RunnerServer] Catch exception during connect. 3 attempt left.
[2024-02-08 07:59:41Z ERR  RunnerServer] System.Net.Http.HttpRequestException: Network is unreachable (pipelinesghubeus4.actions.githubusercontent.com:443)
 ---> System.Net.Sockets.SocketException (101): Network is unreachable
   at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ThrowException(SocketError error, CancellationToken cancellationToken)
   at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
   at System.Net.Sockets.Socket.<ConnectAsync>g__WaitForConnectWithCancellation|277_0(AwaitableSocketAsyncEventArgs saea, ValueTask connectTask, CancellationToken cancellationToken)
   at System.Net.Http.HttpConnectionPool.ConnectToTcpHostAsync(String host, Int32 port, HttpRequestMessage initialRequest, Boolean async, CancellationToken cancellationToken)
   --- End of inner exception stack trace ---
   at GitHub.Services.Common.VssHttpRetryMessageHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
   at System.Net.Http.HttpClient.<SendAsync>g__Core|83_0(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationTokenSource cts, Boolean disposeCts, CancellationTokenSource pendingRequestsCts, CancellationToken originalCancellationToken)
   at GitHub.Services.WebApi.VssHttpClientBase.SendAsync(HttpRequestMessage message, HttpCompletionOption completionOption, Object userState, CancellationToken cancellationToken)
   at GitHub.Services.WebApi.VssHttpClientBase.SendAsync[T](HttpRequestMessage message, Object userState, CancellationToken cancellationToken)
   at GitHub.Services.Location.Client.LocationHttpClient.GetConnectionDataAsync(ConnectOptions connectOptions, Int64 lastChangeId, CancellationToken cancellationToken, Object userState)
   at GitHub.Services.WebApi.Location.VssServerDataProvider.GetConnectionDataAsync(ConnectOptions connectOptions, Int32
lastChangeId, CancellationToken cancellationToken)
   at GitHub.Services.WebApi.Location.VssServerDataProvider.ConnectAsync(ConnectOptions connectOptions, CancellationToken cancellationToken)
   at GitHub.Runner.Common.RunnerService.EstablishVssConnection(Uri serverUrl, VssCredentials credentials, TimeSpan timeout)
[2024-02-08 07:59:41Z ERR  RunnerServer] #####################################################
[2024-02-08 07:59:41Z ERR  RunnerServer] System.Net.Sockets.SocketException (101): Network is unreachable
   at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.ThrowException(SocketError error, CancellationToken cancellationToken)
   at System.Net.Sockets.Socket.AwaitableSocketAsyncEventArgs.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
   at System.Net.Sockets.Socket.<ConnectAsync>g__WaitForConnectWithCancellation|277_0(AwaitableSocketAsyncEventArgs saea, ValueTask connectTask, CancellationToken cancellationToken)
   at System.Net.Http.HttpConnectionPool.ConnectToTcpHostAsync(String host, Int32 port, HttpRequestMessage initialRequest, Boolean async, CancellationToken cancellationToken)
[2024-02-08 07:59:41Z INFO GitHubActionsService] Starting operation Location.GetConnectionData

Runner and Worker's Diagnostic Logs

Logs given above

Start by tracing the runner's startup and registration flow around the Location.GetConnectionData operation shown in the diagnostic logs. Investigate how the runner resolves and connects to pipelinesghubeus4.actions.githubusercontent.com on an IPv6-only host. Done means an IPv6-only self-hosted runner can start, register as online, and no longer fails with NetworkUnreachable.