chore(deps): pin jupyterlab/maintainer-tools action to affc83b (#29)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yaml

@@ -22,7 +22,7 @@ jobs:
         uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5
 
       - name: Base Setup
-        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
+        uses: jupyterlab/maintainer-tools/.github/actions/base-setup@affc83be6020d529b9368cd4d63e467877606600 # v1
 
       - name: Install JupyterLab
         run: python -m pip install -U "jupyterlab>=4.0.0,<5"