refactor: workflows and make targets

[cameronmeissner]

What type of PR is this?

What this PR does / why we need it:

This PR aims to accomplish the following:

• cleanup the monolithic generate make target, which has become overloaded with many different sub-targets and often leaves devs confused when it fails.
• add/revive new + old github workflows such that all tests previously ran by generate have their own dedicated workflows to make debugging much easier and less confusing
• rename workflows to make their respective intentions much more clear, "check-tests/coverage/generated" was quite confusing
• remove the check-generated workflow, which previously ran make generate and asserted that no diff was produced. Failure to generate testdata will now be checked by the go unit test workflow, which will fail if testdata needs to be regenerated and it hasn't

Which issue(s) this PR fixes:

Fixes #

Requirements:

• uses conventional commit messages
• includes documentation
• adds unit tests
• tested upgrade from previous version

Special notes for your reviewer:

Release note:

none