ci(dependencies.io): set commit_message_prefix for npm dependencies

dependencies.yml

@@ -6,6 +6,9 @@ collectors:
   # pull requests for new major versions
   - type: js-npm
     versions: "Y.0.0"
+    settings:
+      # these updates should generally not have an effect on users
+      commit_message_prefix: "chore: "
 
 # receive pull requests to update composer.lock for any update to the language server or dependencies of it
 # after merging, depending on whether it was a patch or feature update,