[release/0.23] Add new powershell script for test-ci to remove need for choco install on build agents

[danegsta]

Backport of #115 to release/0.23

/cc @danegsta

Customer Impact

Testing

Risk

Regression?

[Copilot]

Pull request overview

Adds a Windows-specific CI test driver script to run the equivalent of make test-ci without requiring GNU make/mingw, and updates CI pipelines to use it on Windows (backport of #115 to release/0.23).

Changes:

• Introduces scripts/test-ci.ps1 to build test prerequisites (including grpc codegen) and run go test on Windows without GNU make/choco dependencies.
• Updates GitHub Actions workflow to run the new PowerShell test script on Windows.
• Updates Azure Pipelines to remove Chocolatey installation of make/mingw and run the new script for Windows tests.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
scripts/test-ci.ps1	New Windows CI test driver: installs protoc, runs grpc codegen, builds test prereqs, and runs go test.
Makefile	Adds notes documenting that Windows CI uses scripts/test-ci.ps1 and must stay in sync with test-ci targets.
.github/workflows/build-test.yml	Switches Windows job to run pwsh ./scripts/test-ci.ps1 instead of make test-ci and removes choco prereqs install.
.azure/pipelines/common-build.yml	Removes Windows choco install step and runs ./scripts/test-ci.ps1 for Windows test stage.

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[Copilot]

Invoke-WebRequest is called with -UseBasicParsing, which is not supported in PowerShell 6+ (pwsh). Since the GitHub Actions workflow runs this script via pwsh, this will fail at runtime. Drop -UseBasicParsing (or switch to curl.exe like the Makefile) so the download works under PowerShell 7+.

Suggested change

	Invoke-WebRequest -Uri $url -OutFile $zipPath -UseBasicParsing
	Invoke-WebRequest -Uri $url -OutFile $zipPath

[Copilot]

The script assumes the Windows CI job runs with CGO_ENABLED=0 (to avoid needing a C toolchain), but it never sets CGO_ENABLED for the go build / go test invocations, and the updated CI workflows don’t export it either. Set $env:CGO_ENABLED = '0' (ideally once near the top, or within Invoke-Native/Invoke-GoBuild) to ensure the script actually removes the mingw/gcc dependency and stays consistent with the Makefile’s default.

Suggested change

	# Match the Makefile's Windows CI default so Go commands do not require a C toolchain.
	$env:CGO_ENABLED = '0'