Housekeeping Update packages Fix build

[ChrisPulman]

What kind of change does this PR introduce?

Fix Update

What is the current behaviour?

Xamarin.Mac lib missing
Null issue

What is the new behaviour?

Added hintpath for Xamarin.Mac
Updated packages
added null checks

What might this PR break?

none expected

Please check if the PR fulfils these requirements

• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

Other information:

[glennawatson]

Is there a constructor with the path?

[ChrisPulman]

Lines 30 - 36 all use enums to pass to this, I tried url?.RelativePath! but it still failed to compile

[codecov]

Codecov Report

Base: 58.15% // Head: 58.15% // No change to project coverage 👍

Coverage data is based on head (8a2ed9f) compared to base (865b438).
Patch has no changes to coverable lines.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #814   +/-   ##
=======================================
  Coverage   58.15%   58.15%           
=======================================
  Files          59       59           
  Lines        3348     3348           
=======================================
  Hits         1947     1947           
  Misses       1401     1401           

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[github-actions]

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.