Update Microsoft.Build.* versions to 17.8.43

[PranavSenthilnathan]

No description provided.

[Copilot]

Pull Request Overview

This PR updates the Microsoft.Build.* package versions from 17.8.3 to 17.8.43 across the build configuration. This is a minor version bump within the 17.8 patch series, likely incorporating bug fixes or improvements from the MSBuild team.

Key Changes:

• Updated four Microsoft.Build package version properties to 17.8.43

[jozkee]

Thanks.

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[PranavSenthilnathan]

/backport to release/8.0

[github-actions]

Started backporting to release/8.0: https://github.com/dotnet/runtime/actions/runs/18575615859

[github-actions]

@PranavSenthilnathan backporting to "release/8.0" failed, the patch most likely resulted in conflicts:

$ git am --3way --empty=keep --ignore-whitespace --keep-non-patch changes.patch

Applying: Update Microsoft.Build.* versions to 17.8.43
Using index info to reconstruct a base tree...
M	eng/Versions.props
Falling back to patching base and 3-way merge...
Auto-merging eng/Versions.props
CONFLICT (content): Merge conflict in eng/Versions.props
error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch=diff' to see the failed patch
hint: When you have resolved this problem, run "git am --continue".
hint: If you prefer to skip this patch, run "git am --skip" instead.
hint: To restore the original branch and stop patching, run "git am --abort".
hint: Disable this message with "git config set advice.mergeConflict false"
Patch failed at 0001 Update Microsoft.Build.* versions to 17.8.43
Error: The process '/usr/bin/git' failed with exit code 128

Please backport manually!

[PranavSenthilnathan]

/backport to release/10.0

[github-actions]

Started backporting to release/10.0: https://github.com/dotnet/runtime/actions/runs/18575819116

[PranavSenthilnathan]

Superceded by dotnet/dotnet#2953