Add explicit names to all CI workflow checks + tweak branch protection rules

[krebernisak]

Some checks like lint, test, build (ubuntu-latest, 14.x) & format (ubuntu-latest, 14.x) were removed from branch protection rules as they were not setup properly and blocked some PRs:

• build (ubuntu-latest, 14.x) & format (ubuntu-latest, 14.x) blocked asdf and ginkgo updates to bring more in line with terra #256
• lint & test blocked tx simulation + config diff + minor refactor #257

Notice: there are no names for defined checks so it's hard to figure out what checks do those names actually reference.

Action items:

• Add explicit names to all CI workflow checks so they are easily identifiable
• Check, tweak & improve on: workflow triggers in the context of branch protection rules
• Reconfigure branch protection rules as appropriate, considering both develop & main branches

[tateexon]

Changes pushed in #256