Add new reusable workflow for matrix testing scenarios

[JamesDawson]

Currently focussed on supporting .NET Framework testing scenarios.

The testPhaseMatrixJson workflow input allows you specify combinations of OSes and .NET Framework versions that tests will be run on, using the following JSON object:

{
  "os": ["ubuntu-latest", "windows-latest"],
  "dotnetFramework": ["net8.0", "net481"],
  "exclude": [
    {
      "os": "ubuntu-latest",
      "dotnetFramework": "net481"
    }
  ]
}

Refer to the GitHub documentation for more information about the different matrix configuration options:
https://docs.github.com/en/actions/writing-workflows/choosing-what-your-workflow-does/running-variations-of-jobs-in-a-workflow

TODO

Update scripted-build-pipeline.yml with relevant changes from the new matrix build:

• Add ability to customise runner OS
• Consider removing the publishing of the Cobertura coverage XML artefact
• Remove use of irongut/CodeCoverageSummary as this is now part of scripted build
• Apply updates to allow running EnricoMi/publish-unit-test-result-action on different OSes
• Test workflow - validated here
• Add PowerShell step for checking runner OS to matrix build workflow
  • This involves adding this equivalent functionality to the matrix version of the workflow
• Add CI workflow to validate changes to matrix workflow - see ci-matrix.yml workflow

[github-actions]

Test Results

1 tests   1 ✅  0s ⏱️
1 suites  0 💤
1 files    0 ❌

Results for commit 7d9cefe.

♻️ This comment has been updated with latest results.

[github-actions]

Code Coverage Summary Report - Linux (No TFM)

Summary

Generated on:	08/25/2024 - 11:57:00
Parser:	Cobertura
Assemblies:	2
Classes:	2
Files:	2
Line coverage:	100% (4 of 4)
Covered lines:	4
Uncovered lines:	0
Coverable lines:	4
Total lines:	21
Covered branches:	0
Total branches:	0
Method coverage:	Feature is only available for sponsors

Coverage

TestLib - 100%

Name	Line	Branch
TestLib	100%	****
TestLib.Class1	100%

TestLib.Tests - 100%

Name	Line	Branch
TestLib.Tests	100%	****
TestLib.Tests.Tests	100%

[github-actions]

Code Coverage Summary Report - Windows (net8.0)

Summary

Generated on:	8/25/2024 - 11:58:41 AM
Parser:	Cobertura
Assemblies:	2
Classes:	2
Files:	2
Line coverage:	100% (4 of 4)
Covered lines:	4
Uncovered lines:	0
Coverable lines:	4
Total lines:	21
Covered branches:	0
Total branches:	0
Method coverage:	Feature is only available for sponsors

Coverage

TestLib - 100%

Name	Line	Branch
TestLib	100%	****
TestLib.Class1	100%

TestLib.Tests - 100%

Name	Line	Branch
TestLib.Tests	100%	****
TestLib.Tests.Tests	100%

[github-actions]

Code Coverage Summary Report - Linux (net8.0)

Summary

Generated on:	08/25/2024 - 11:59:14
Parser:	Cobertura
Assemblies:	2
Classes:	2
Files:	2
Line coverage:	100% (4 of 4)
Covered lines:	4
Uncovered lines:	0
Coverable lines:	4
Total lines:	21
Covered branches:	0
Total branches:	0
Method coverage:	Feature is only available for sponsors

Coverage

TestLib - 100%

Name	Line	Branch
TestLib	100%	****
TestLib.Class1	100%

TestLib.Tests - 100%

Name	Line	Branch
TestLib.Tests	100%	****
TestLib.Tests.Tests	100%