chore: disable renovate dependency dashboard (#1194)

.github/.OwlBot.lock.yaml

@@ -1,3 +1,3 @@
 docker:
   image: gcr.io/repo-automation-bots/owlbot-nodejs:latest
-  digest: sha256:6245a5be4c0406d9b2f04f380d8b88ffe4655df3cdbb57626f8913e8d620f4dd
+  digest: sha256:667a9e46a9aa5b80240ad164d55ac33bc9d6780b5ef42f125a41f0ad95bc1950

README.md

@@ -147,8 +147,8 @@ Contributions welcome! See the [Contributing Guide](https://github.com/googleapi
 Please note that this `README.md`, the `samples/README.md`,
 and a variety of configuration files in this repository (including `.nycrc` and `tsconfig.json`)
 are generated from a central template. To edit one of these files, make an edit
-to its template in this
-[directory](https://github.com/googleapis/synthtool/tree/master/synthtool/gcp/templates/node_library).
+to its templates in
+[directory](https://github.com/googleapis/synthtool).
 
 ## License
 

renovate.json

@@ -1,7 +1,8 @@
 {
   "extends": [
     "config:base",
-    "docker:disable"
+    "docker:disable",
+    ":disableDependencyDashboard"
   ],
   "pinVersions": false,
   "rebaseStalePrs": true,