Cannot run .NET 10 SDK dotnet test with an argument containing a colon using System.Diagnostics.Process

### Describe the bug
This is a bizarre one. It works when running `dotnet test` directly in the command line, but not when using `System.Diagnostics.Process`. This seems like a regression, because it works when using the 9.x SDK.

### To Reproduce

1. `git clone https://github.com/adamralph/dotnet-test-process-bug.git`
3. `cd dotnet-test-process-bug/sdk-9`
4. `dotnet run`
5. Observe that the command succeeds with no errors.
6. `cd ../sdk-10`
7. `dotnet run`
8. Observe that the command fails with: `error MSB4177: Invalid property. The name "console%3bverbosity" contains an invalid character "%".`

### Exceptions (if any)

> `error MSB4177: Invalid property. The name "console%3bverbosity" contains an invalid character "%".`

### Further technical details
details of dotnet --info

.NET SDK:
Version: 10.0.101
Commit: fad253f51b
Workload version: 10.0.100.1
MSBuild version: 18.0.6+fad253f51

Runtime Environment:
OS Name: Mac OS X
OS Version: 26.1
OS Platform: Darwin
RID: osx-arm64
Base Path: /usr/local/share/dotnet/sdk/10.0.101/

.NET workloads installed:
There are no installed workloads to display.
Configured to use workload sets when installing new manifests.

Host:
Version: 10.0.1
Architecture: arm64
Commit: fad253f51b

.NET SDKs installed:
8.0.204 [/usr/local/share/dotnet/sdk]
9.0.101 [/usr/local/share/dotnet/sdk]
9.0.104 [/usr/local/share/dotnet/sdk]
9.0.200 [/usr/local/share/dotnet/sdk]
9.0.203 [/usr/local/share/dotnet/sdk]
10.0.100-rc.2.25502.107 [/usr/local/share/dotnet/sdk]
10.0.100 [/usr/local/share/dotnet/sdk]
10.0.101 [/usr/local/share/dotnet/sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 8.0.4 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 9.0.0 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 9.0.2 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 9.0.3 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 9.0.4 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 10.0.0-rc.2.25502.107 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 10.0.0 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 10.0.1 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 8.0.4 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 9.0.0 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 9.0.2 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 9.0.3 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 9.0.4 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 10.0.0-rc.2.25502.107 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 10.0.0 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 10.0.1 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]

Other architectures found:
None

Environment variables:
Not set

global.json file:
Not found

Learn more:
https://aka.ms/dotnet/info

Download .NET:
https://aka.ms/dotnet/download

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