[DDO-3225] Use v3 version endpoints from GHA

[jack-r-warren]

1. Convert the report workflows to use the v3 version endpoints
2. To help test this, begin reporting Sherlock's own versions
3. Improve the app version parent-finding behavior to handle monorepos (add --exclude='*/**' to the tag-finding code so that it won't see tags like go-shared/v1.2.3 as potential parents, only v1.2.3)
4. Rename an internal Sherlock variable because I confused myself looking at the code
5. Make Sherlock's build now run when GHA components of that action change to help test them more generally

Testing

Steps 2 and 5 above help test this

Risk

Low based on step 2 and confirming at https://beehive.dsp-devops.broadinstitute.org/charts/sherlock/app-versions/v0.2.16-8dd7531

[github-actions]

Published image from 8c4f473 (merge a4c03a7):

us-central1-docker.pkg.dev/dsp-artifact-registry/sherlock/sherlock:v0.2.16-a4c03a7

[github-actions]

No API changes detected

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[codecov]

Codecov Report

Merging #334 (8c4f473) into main (1660cc4) will not change coverage.
Report is 2 commits behind head on main.
The diff coverage is 50.00%.

@@           Coverage Diff           @@
##             main     #334   +/-   ##
=======================================
  Coverage   63.23%   63.23%           
=======================================
  Files         147      147           
  Lines        8671     8671           
=======================================
  Hits         5483     5483           
  Misses       2813     2813           
  Partials      375      375           

Files	Coverage Δ
sherlock/internal/api/sherlock/app_version_v3.go	70.83% <50.00%> (ø)
sherlock/internal/api/sherlock/chart_version_v3.go	71.73% <50.00%> (ø)