chore(deps): pin dependencies

Author: renovate[bot]

charts/dependency-controller/values.yaml

@@ -18,7 +18,7 @@ kcpBaseHost: ""
 controller:
   image:
     repository: ghcr.io/opendefensecloud/dependency-controller
-    tag: ""
+    tag: "@sha256:1d0b2cea810a85e014e6f90532054ba788225098daac2b9d3fc5c20ee0fd927f"
 
   replicas: 1
 
@@ -51,7 +51,7 @@ controller:
 webhook:
   image:
     repository: ghcr.io/opendefensecloud/dependency-webhook
-    tag: ""
+    tag: "@sha256:90bb727136a453c6be355d8de3fd0981f51c4668b5c9101bb6dec517a81cb043"
 
   replicas: 1