docs: fix auth secretRef in API docs (#2077)

Signed-off-by: Mubarak Jama <83465122+mubarak-j@users.noreply.github.com>

docs/snippets/full-secret-store.yaml

@@ -35,10 +35,10 @@ spec:
       # getting the accessKeyID and secretAccessKey from an already created Kubernetes Secret
       auth:
         secretRef:
-          accessKeyID:
+          accessKeyIDSecretRef:
             name: awssm-secret
             key: access-key
-          secretAccessKey:
+          secretAccessKeySecretRef:
             name: awssm-secret
             key: secret-access-key