[Rebase & FF] 202405: Changes related to upstream unit test code coverage

[cfernald]

Description

Merge changes not in upstream for code coverage in unit tests.

cherry-pick from 649b6c069f 11837561aa 857b4ed881 991a64e (pulled from 43ae607) 785fe3db51

• [x] Impacts functionality?
• [ ] Impacts security?
• [x] Breaking change?
• [ ] Includes tests?
• [ ] Includes documentation?

How This Was Tested

N/A

Integration Instructions

N/A

[cfernald]

Note for @os-d, dropped the pipelines changes in favor of a wholesale copy later.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Please upload report for BASE (release/202405@8f07cb9). Learn more about missing BASE report.

Additional details and impacted files

@@                Coverage Diff                @@
##             release/202405     #919   +/-   ##
=================================================
  Coverage                  ?    1.23%           
=================================================
  Files                     ?     1420           
  Lines                     ?   358173           
  Branches                  ?     4336           
=================================================
  Hits                      ?     4412           
  Misses                    ?   353702           
  Partials                  ?       59           

Flag	Coverage Δ
MdeModulePkg	0.20% <ø> (?)
MdePkg	5.41% <ø> (?)
NetworkPkg	0.55% <ø> (?)
UefiCpuPkg	4.80% <ø> (?)

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