Limit when actions run.

They should only run on push to master or a version branch, and on a pull request.

.github/workflows/coding-standards.yml

@@ -2,6 +2,11 @@ name: Coding Standards
 
 on:
   push:
+    branches:
+      - master
+      # PHPCS checking was introduced in WordPress 5.1.
+      - '5.[1-9]'
+      - '[6-9].*'
   pull_request:
 
 jobs:

.github/workflows/end-to-end-tests.yml

@@ -2,6 +2,11 @@ name: End-to-end Tests
 
 on:
   push:
+    branches:
+      - master
+      # The end to end test suite was introduced in WordPress 5.3.
+      - '5.[3-9]'
+      - '[6-9].*'
   pull_request:
 
 env:

.github/workflows/javascript-tests.yml

@@ -2,6 +2,9 @@ name: JavaScript Tests
 
 on:
   push:
+    branches:
+      - master
+      - '*.*'
   pull_request:
 
 jobs:

.github/workflows/php-compatibility.yml

@@ -2,6 +2,11 @@ name: PHP Compatibility
 
 on:
   push:
+    branches:
+      - master
+      # The PHP compatibility testing was introduced in WordPress 5.5.
+      - '5.[5-9]'
+      - '[6-9].*'
   pull_request:
 
 jobs:

.github/workflows/phpunit-tests.yml

@@ -2,7 +2,7 @@ name: PHPUnit Tests
 
 on:
   push:
-    - branches:
+    branches:
       - master
       - '*.*'
   pull_request:

.github/workflows/verify-npm-on-windows.yml

@@ -2,6 +2,9 @@ name: Test NPM on Windows
 
 on:
   push:
+    branches:
+      - master
+      - '*.*'
   pull_request:
 
 jobs: