Update renovatebot/github-action action to v43.0.18 (#1176)

Co-authored-by: botty-mcbottington[bot] <168950816+botty-mcbottington[bot]@users.noreply.github.com>

Author: botty-mcbottington[bot]

.github/workflows/renovate.yaml

@@ -64,7 +64,7 @@ jobs:
           persist-credentials: false
 
       - name: Renovate
-        uses: renovatebot/[email protected].17
+        uses: renovatebot/[email protected].18
         with:
           docker-cmd-file: .github/renovate-entrypoint.sh
           docker-user: root