Run workflow for Pull Requests

Author: jasonmccreary

.github/workflows/lint.yml

@@ -1,6 +1,8 @@
 name: Lint
 on:
-  - push
+  - push:
+      branches: main
+    pull_request:
 jobs:
   lint:
     name: Lint

.github/workflows/test.yml

@@ -1,6 +1,8 @@
 name: Test
 on:
-  - push
+  push:
+    branches: main
+  pull_request:
 jobs:
   test:
     strategy: