feat(container): update image ghcr.io/kiwigrid/k8s-sidecar to v1.30.0

Author: renovate[bot]

kubernetes/apps/observability/gatus/app/helmrelease.yaml

@@ -29,7 +29,7 @@ spec:
           init-config:
             image:
               repository: ghcr.io/kiwigrid/k8s-sidecar
-              tag: 1.28.4
+              tag: 1.30.0
             env:
               FOLDER: /config
               LABEL: gatus.io/enabled