Chore/githib actions ci

[timcadman]

Background

The existing Azure CI has worked well, but it can potentially be improved.

What's changed

• Migrated from Azure to github actions

New features

• Runs Opal and Armadillo each time
• Tests are run in parallel batches reducing time from >1 hour to <20 mins
• Added lint testing for code quality
• Add a summary of passes/fails in the comments

Still to do

• I have also tried to add code cov but I can't get it working - maybe we look at this together.

Testing

This was very AI generated flow, but I have asked it to review its own code and it assures me that none of the existing functionality is lost haha. I have also tested it against different combinations of passing and failing.

[github-actions]

❌ 2 of 5 checks failed

Check	Result
Devtools checks	✅ passed
Code quality	✅ 0 findings
Armadillo unit tests	❌ [ FAIL 4 | WARN 0 | SKIP 27 | PASS 11044 ]
Opal unit tests	✅ [ FAIL 0 | WARN 0 | SKIP 27 | PASS 11064 ]
Test coverage	❌ 61.2% vs 80% target

Tested against dsBase versions:
Armadillo: 7.0.0.9000
Opal: 7.0.0.9000

Logs: Devtools checks · Code quality · Armadillo unit tests · Opal unit tests · Codecov