add zizmor for linting workflows.

[NicholasTanz]

Description of the changes being introduced by the pull request:

Fixes #2793

[jku]

Nice, thanks.

• left one change request: the release workflow is a bit tricky to test but I'm guessing the rc release name is not correct right now. This seems like the only merge blocking thing
• On personas: I believe "auditor" persona is not appropriate but "pedantic" might be -- feel free to experiment if you want but be aware that some of the suggestions might require discussion. Keeping the default is totally fine for this PR though
• The output is a little verbose maybe... Can you fiddle with verbosity settings to get the output to roughly match the other tools (in tox -e lint) -- one or two lines of output from zizmor would be ideal for successful run

[NicholasTanz]

• On personas: I believe "auditor" persona is not appropriate but "pedantic" might be -- feel free to experiment if you want but be aware that some of the suggestions might require discussion. Keeping the default is totally fine for this PR though

switching to pedantic covered all of the suppressed results (5) and they seem fairly reasonable to me

4/5 of them were due to unpinned "uses", but those were all unpinned with the reason that security wasn't critical. I tried using the ignore with the trailing explanation but it didn't seem to work.

edit: My bad, the ignore with trailing explanation feature isn't out yet as of v1.3.1.

1/5 was due to excessive permissions and even though there's just one job in that workflow, I think it makes sense to specify the permissions in the job

[jku]

Thanks, LGTM