chore: update workflow from template

Signed-off-by: Christian Hartmann <chris-hartmann@gmx.de>

Author: Chartman123

.github/workflows/dependabot-approve-merge.yml

@@ -46,7 +46,7 @@ jobs:
 
       - name: Dependabot metadata
         id: metadata
-        uses: dependabot/fetch-metadata@ffa630c65fa7e0ecfa0625b5ceda64399aea1b36 # v3.0.0
+        uses: dependabot/fetch-metadata@25dd0e34f4fe68f24cc83900b1fe3fe149efef98 # v3.1.0
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}