Remove outdated comment from pants.yaml (#114)

Author: Kludex

.github/workflows/pants.yaml

@@ -27,7 +27,6 @@ jobs:
     - uses: pantsbuild/actions/init-pants@v1
       # This action bootstraps pants and manages 2-3 GHA caches.
       # See: github.com/pantsbuild/actions/tree/init-pants/
-      # We use an action SHA because there are no tags yet.
       with:
         # cache0 makes it easy to bust the cache if needed
         # just increase the integer to start with a fresh cache