🤖 config(ci): Only run GHA workflows once on PRs.

These changes were automatically generated by a transform whose code can be found at:
  - https://github.com/make-github-pseudonymous-again/rejuvenate/blob/b27ce6d333a4c46ff5161eaddfbe16895bbabf0f/src/transforms/ci:only-run-gha-once-on-prs.js
Please contact the author of the transform if you believe there was an error.

.github/workflows/ci.yml

@@ -1,8 +1,10 @@
 name: ci
 
 on:
-  - push
-  - pull_request
+  push:
+    branches:
+      main
+  pull_request:
 
 jobs:
 

.github/workflows/ci:cover.yml

@@ -1,7 +1,9 @@
 name: ci:cover
 on:
-  - push
-  - pull_request
+  push:
+    branches:
+      main
+  pull_request:
 jobs:
   cover:
     name: Continuous integration (code coverage)

.github/workflows/ci:lint-config.yml

@@ -1,7 +1,9 @@
 name: ci:lint-config
 on:
-  - push
-  - pull_request
+  push:
+    branches:
+      main
+  pull_request:
 jobs:
   cover:
     name: Continuous integration (config linting)

.github/workflows/ci:lint.yml

@@ -1,7 +1,9 @@
 name: ci:lint
 on:
-  - push
-  - pull_request
+  push:
+    branches:
+      main
+  pull_request:
 jobs:
   cover:
     name: Continuous integration (code linting)