chore: add open role to README.md (#1378)

Author: grdsdev

README.md

@@ -3,6 +3,9 @@
 - **Documentation:** https://supabase.com/docs/reference/javascript/start
 - TypeDoc: https://supabase.github.io/supabase-js/v2/
 
+> [!NOTE]
+> Do you want to help us shape the future of this library? [We're hiring](https://jobs.ashbyhq.com/supabase/85d07345-47c6-4980-82e2-57782f83ab4e).
+
 ## Usage
 
 First of all, you need to install the library: