chore(deps): update common docker tag to v2.30.2

Author: renovate[bot]

charts/docker-mailserver/Chart.yaml

@@ -28,7 +28,7 @@ dependencies:
   repository: oci://registry-1.docker.io/bitnamicharts
   condition: mariadb.enabled
 - name: common
-  version: 2.30.0
+  version: 2.30.2
   repository: oci://registry-1.docker.io/bitnamicharts
 annotations:
   category: Mail