chore(release): create pseudoversion tag on each push to main

[mnoah1]

Current bump script needs to clone and tag the repo. This PR adds a pseudoversion tag on each commit so it's easier to deploy any merged commit.

Why?

Provides more continuous versioning with clear date and commit references, which will better support our continuous release process and automations.

What?

Pushes to main get a tag in the v0.0.0-yyyymmddhhmmss-rev format

Test Plan

• After this merges, this commit should receive a tag in the expected format
• Then, our internal bump script can be used to bump to this version (and we can remove the logic where it has to add the tag itself)