docs: add note for tests that have requisites (excalidraw#6856)

Co-authored-by: David Luzar <[email protected]>

dev-docs/docs/introduction/contributing.mdx

@@ -69,6 +69,10 @@ It's also a good idea to consider if your change should include additional tests
 
 Finally - always manually test your changes using the convenient staging environment deployed for each pull request. As much as local development attempts to replicate production, there can still be subtle differences in behavior. For larger features consider testing your change in multiple browsers as well.
 
+:::note
+Some checks, such as the `lint` and `test`, require approval from the maintainers to run. 
+They will appear as `Expected — Waiting for status to be reported` in the PR checks when they are waiting for approval.
+:::
 
 ## Translating