During the evening, my TUI instances regularly get transient API errors

### Describe the bug
● Request failed due to a transient API error. Retrying...
● Request failed due to a transient API error. Retrying...
● Request failed due to a transient API error. Retrying...
● Request failed due to a transient API error. Retrying...
● Request failed due to a transient API error. Retrying...
✗ Execution failed: Error: Failed to get response from the AI model; retried 5 times (total retry wait time: 27.10 seconds
Last error: CAPIError: 503 {"error":{"message":"HTTP/2 GOAWAY connection terminated","type":"connection_error"}}

### Affected version

GitHub Copilot CLI 1.0.40.

### Steps to reproduce the behavior

Use it after 8pm PST.
no other apps experience network issues.

### Expected behavior

N/A

### Additional context

It seems to occur when in /plan mode