ci(baselines): Disable baselines CI workflow (#6744)

Comment out the baselines workflow as many baselines are not being actively maintained and we don't want to block PRs that touch multiple baselines.

Author: tanertopal

.github/workflows/baselines.yml

@@ -17,6 +17,8 @@ env:
 
 jobs:
   changes:
+    # To re-enable, remove `if: false` from the changes job.
+    if: ${{ false }}
     runs-on: ubuntu-22.04
     permissions:
       pull-requests: read