v280.1.6

Updates:

• Updates nats-server from 2.10.19 to 2.10.20

What's Changed

• Finish converting from Machinist to FactoryBot for building models in specs by @aramprice in #2550
• Add workflow to run unit specs by @aramprice in #2551
• DRY up some duplication in DB helpers by @aramprice in #2553
• Remove unused rspec config tags by @aramprice in #2554
• Add ostruct as an explicit dependency by @aramprice in #2558
• 🐞 Use Rake's sh method to execute TestRunner's command by @aramprice in #2560
• Consolidate start db helper by @aramprice in #2561
• Taks name for bosh release template specs follows existing pattern by @aramprice in #2562
• Unpin rake and parallel_tests gems by @aramprice in #2563
• Add spec_helper for release template specs by @aramprice in #2564
• Replace TestRunner with Rake's multitask and sh calls by @aramprice in #2565
• Add swift options to s3 blobstore options by @mvach in #2566
• Pend invalid brats test (external db tls) by @aramprice in #2567

Full Changelog: v280.1.5...v280.1.6