update label (#3898)

Signed-off-by: KAZYPinkSaurus <kazuya.arai@sansan.com>
Co-authored-by: Gergely Brautigam <182850+Skarlso@users.noreply.github.com>

docs/snippets/generator-webhook.yaml

@@ -20,7 +20,7 @@ kind: Secret
 metadata:
   name: webhook-credentials
   labels:
-    generators.external-secrets.io/type: webhook #Needed to allow webhook to use this secret
+    external-secrets.io/type: webhook #Needed to allow webhook to use this secret
 data:
   username: dGVzdA== # "test"
   password: dGVzdA== # "test"