[ci][windows] sign executables using Azure

[AenBleidd]

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Copilot reviewed 5 out of 11 changed files in this pull request and generated no comments.

Files not reviewed (6)

• win_build/boinc.sln: Language not supported
• win_build/boinc_signing.targets: Language not supported
• win_build/installer.vcxproj: Language not supported
• win_build/installer_msi.vcxproj: Language not supported
• win_build/installer_setup.vcxproj: Language not supported
• ci_tools/trailing_whitespaces_check.py: Evaluated as low risk

Comments suppressed due to low confidence (2)

.github/workflows/windows.yml:42

• The path uses backslashes which might cause issues. Consider using forward slashes or a method that handles path separators correctly.

TSCT: ${{github.workspace}}\temp\TSCT

.github/workflows/windows.yml:101

• The condition checks for environment variables using '!= 0' which might be confusing. Consider checking for non-empty strings instead.

if: success() && matrix.type == 'msbuild' && startsWith(github.ref, 'refs/tags/') && env.AZURE_CLIENT_ID != 0 && env.AZURE_CLIENT_SECRET != 0 && env.AZURE_TENANT_ID != 0 && env.AZURE_ENDPOINT != 0 && env.AZURE_CODE_SIGNING_NAME != 0 && env.AZURE_CERT_PROFILE_NAME != 0