Jobs/PrGate.yml: Update Code Coverage commands (#273)

Updates the Code coverage command to also use the following flags:

CC_FLATTEN=TRUE - de-duplicates source file coverage due to the same
source file being used by multiple INFs.

CC_FULL=TRUE - inserts coverage data (correct code line count, but zero
lines covered) for all source files in the package that are not present
in the original coverage report.

## Integration Instructions

Pipelines consuming this change must add pygount to their
pip-requirements file.

.sync/Version.njk

@@ -30,7 +30,7 @@
 #}
 
 {# The git ref value that files dependent on this repo will use. #}
-{% set mu_devops = "v7.2.0" %}
+{% set mu_devops = "v8.0.0" %}
 
 {# The latest Project Mu release branch value. #}
 {% set latest_mu_release_branch = "release/202302" %}

Jobs/PrGate.yml

@@ -177,7 +177,7 @@ jobs:
         ${{ else }}:
           self_host_agent: false
         ${{ if eq(parameters.calculate_code_coverage, true) }}:
-          extra_build_args: CODE_COVERAGE=TRUE
+          extra_build_args: CODE_COVERAGE=TRUE CC_FLATTEN=TRUE CC_FULL=TRUE
         ${{ else }}:
           extra_build_args: ''