chore: use names for all GitHub actions steps and use sqlc setup action (#8495)

.github/workflows/contrib.yaml

@@ -25,7 +25,8 @@ jobs:
     permissions:
       pull-requests: write
     steps:
-      - uses: hmarr/auto-approve-action@v3
+      - name: auto-approve dependabot
+        uses: hmarr/auto-approve-action@v3
         if: github.actor == 'dependabot[bot]'
 
   cla:
@@ -52,7 +53,8 @@ jobs:
     # Skip tagging for draft PRs.
     if: ${{ github.event_name == 'pull_request_target' && success() && !github.event.pull_request.draft }}
     steps:
-      - uses: actions/github-script@v6
+      - name: release-labels
+        uses: actions/github-script@v6
         with:
           # This script ensures PR title and labels are in sync:
           #