Upgraded the following container images in YAML configs:
- restic/restic from 0.17.2 to 0.18.1 in backup.cronjob.yaml and backup.pod.yaml
- rclone/rclone from 1.68 and 1.70 to 1.71 in backup.remote.cronjob.yaml, backup.remote.pod.yaml, and webdav.yaml
- tomsquest/docker-radicale from 3.5.4.0 to 3.5.7.0 in dav.yaml
- crazymax/diun from 4.29.0 to 4.30.0 in docker-image-update-notifier.yaml
- vaultwarden/server from 1.34.1-alpine to 1.34.3-alpine in pwd.yaml
This ensures services are running with recent updates and patches. No other changes were made.