[dependabot]: Bump actions/checkout from 5 to 6 in the actions group (#385)

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/autopush.yml

@@ -11,7 +11,7 @@ jobs:
       contents: write
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           persist-credentials: true
           token: ${{ secrets.MNE_BOT_TOKEN }}