Change library-manager checks to 'submit'

it will be changed back to 'update' once the library is published.

Author: cmaglie

.github/workflows/arduino-lint.yml

@@ -22,6 +22,6 @@ jobs:
         uses: arduino/arduino-lint-action@v2
         with:
           compliance: specification
-          library-manager: update
+          library-manager: submit # remember to change to 'update' after the library is published on the libraries index
           # Always use this setting for official repositories. Remove for 3rd party projects.
           official: true