[dtokenz] Run CI jobs on main as well (#6)

These should pass before merging, but run whenever we push to main as well to make sure things stay functional.

Author: nataliejameson

.github/workflows/ci.yml

@@ -2,7 +2,9 @@ name: CI
 
 on:
   pull_request:
-
+  push:
+    branches:
+      - main
 env:
   CARGO_TERM_COLOR: never