remove unnecessary multiple jobs in workflows

[devkeydet]

We started off on ubuntu-latest but had to switch to windows-latest for certain actions that use PowerShell that still requires Windows. In workflows that use both runners, eliminate multiple jobs where not needed. It just slows down the workflow due to the need to queue up a new runner.

[devkeydet]

Reopened because pac on windows was failing for the same commands pac on linux was succeeding. Seems to be related to:
microsoft/powerplatform-vscode#120. Will revert code in main until issue is fixed.