try hand-rolling update-copyright

Author: kinkie

.github/workflows/source-maintenance.yaml

@@ -9,6 +9,11 @@ permissions:
   contents: read
   pull-requests: write
 
+env:
+  # empty except for pull_request events
+  PULL_REQUEST_NUMBER: ${{ github.event.pull_request.number }}
+  CHECKOUT_FETCH_DEPTH: 1001
+
 jobs:
   source-maintenance:
 
@@ -32,7 +37,12 @@ jobs:
         with:
           fetch-depth: ${{ env.CHECKOUT_FETCH_DEPTH }}
 
-      - run: ./test-suite/test-sources.sh
+      - name: Fix sources
+        run: |
+          baserev=`usr/bin/git rev-parse refs/pull/${PULL_REQUEST_NUMBER}/merge^1`
+          ./scripts/source-maintenance.sh --check-and-update-copyright yes --only-changed-since $baserev --update-contributors-since never
+#          COPYRIGHT_YEARS=`date +"1996-%Y"`
+#          sed -i~ "s/1996-2[0-9]+ The Squid Software Foundation and contributors/${COPYRIGHT_YEARS} The Squid Software Foundation and contributors/g" $(git diff --name-only --cached refs/pull/${PULL_REQUEST_NUMBER}/merge^1)
 
       - uses: parkerbxyz/suggest-changes@v1
         with: