group-diff fetch depth 0

Author: tylertitsworth

.github/workflows/integration-test.yaml

@@ -30,6 +30,8 @@ jobs:
       with:
         egress-policy: audit
     - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+      with:
+        fetch-depth: 0
     - name: Output Modified Group Directories
       id: group-list
       run: |