Retry Mechanism and Resource Cleanup

[Navneet-nt]

What feature do you want to see added?

Retry mechanisms prevent build failures from temporary network issues.
Temporary files weren't properly cleaned up on failure, so we can add finally blocks to do so.
Could duplicate PATH entries so Added check to prevent duplicate PATH entries.

Upstream changes

No response

Are you interested in contributing this feature?

Yes

[timja]

Is this an actual issue you experience happening?

We build the Windows images and wouldn't expect many people to rebuild them themselves (or to even use the Windows images) and I don't remember ever seeing any of this sort of error.