use configurationFile with option instead of env var

.gitea/workflows/renovate.yml

@@ -13,25 +13,15 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v6
 
-      - name: Inspect renovate.json on runner
-        run: |
-          pwd
-          ls -ld .
-          ls -l
-          echo "stat renovate.json:"
-          stat renovate.json || echo "stat failed"
-          echo "file renovate.json:"
-          file renovate.json || echo "file failed"
-
       - name: Run Renovate
         uses: renovatebot/github-action@v46.1.3
         with:
           mount-docker-socket: 'true'
+          configurationFile: renovate.json
         env:
           LOG_LEVEL: debug
           RENOVATE_TOKEN: ${{ secrets.RENOVATE_TOKEN }}
           RENOVATE_PLATFORM: gitea
           RENOVATE_ENDPOINT: https://git.keligrubb.com
           RENOVATE_AUTODISCOVER: "true"
-          RENOVATE_CONFIG_FILE: renovate.json
           RENOVATE_GITHUB_COM_TOKEN: ${{ secrets.RENOVATE_GITHUB_COM_TOKEN }}