Add GitHub action for PR creation and Wix file generation logic

[adityapatwardhan]

PR Summary

When we update to a new version of .NET we need to update the files.wxs file as well. This change automates that. The script needs to be run on Windows for that though.

Also add GitHub Action to create PR when there is an update, scheduled for 13:00 UTC. (6 AM PST now)

PR Context

PR Checklist

• PR has a meaningful title
  • Use the present tense and imperative mood when describing your changes
• Summarized changes
• Make sure all .h, .cpp, .cs, .ps1 and .psm1 files have the correct copyright header
• This PR is ready to merge and is not Work in Progress.
  • If the PR is work in progress, please add the prefix WIP: or [ WIP ] to the beginning of the title (the WIP bot will keep its status check at Pending while the prefix is present) and remove the prefix when the PR is ready.
• Breaking changes
  • None
  • OR
  • Experimental feature(s) needed
    • Experimental feature name(s):
• User-facing changes
  • Not Applicable
  • OR
  • Documentation needed
    • Issue filed:
• Testing - New and feature
  • N/A or can only be tested interactively
  • OR
  • Make sure you've added a new test if existing tests do not effectively test the code changed
• Tooling
  • I have considered the user experience from a tooling perspective and don't believe tooling will be impacted.
  • OR
  • I have considered the user experience from a tooling perspective and enumerated concerns in the summary. This may include:
    • Impact on PowerShell Editor Services which is used in the PowerShell extension for VSCode (which runs in a different PS Host).
    • Impact on Completions (both in the console and in editors) - one of PowerShell's most powerful features.
    • Impact on PSScriptAnalyzer (which provides linting & formatting in the editor extensions).
    • Impact on EditorSyntax (which provides syntax highlighting with in VSCode, GitHub, and many other editors).

[adityapatwardhan]

@PoshChan Please remind me in 1 hour

[PoshChan]

@adityapatwardhan, this is the reminder you requested 1 hour ago

[bergmeister]

@adityapatwardhan This seems to create a PR for each fork and is going to create a lot of noise, is it possible to be opt-in or apply only to the PowerShell organisation itself?
bergmeister#4
The discussion here suggests to add an if conditional on the job: if: github.repository == 'PowerShell/PowerShell'
I tried to create a PR here: #12763

[adityapatwardhan]

@bergmeister Thank you for finding this and creating a PR for the fix.

[ghost]

🎉v7.1.0-preview.4 has been released which incorporates this pull request.:tada:

Handy links:

• Release Notes