chore: updates test workflow conditions

Author: JasonTheAdams

.github/workflows/php-test.yml

@@ -4,7 +4,29 @@ on:
   push:
     branches:
       - trunk
+      - 'feature/**'
+      - 'release/**'
+    # Only run if PHP-related files changed.
+    paths:
+      - '.github/workflows/php-lint.yml'
+      - '**.php'
+      - 'phpcs.xml.dist'
+      - 'phpstan.neon.dist'
+      - 'composer.json'
+      - 'composer.lock'
   pull_request:
+    # Only run if PHP-related files changed.
+    paths:
+      - '.github/workflows/php-lint.yml'
+      - '**.php'
+      - 'phpcs.xml.dist'
+      - 'phpstan.neon.dist'
+      - 'composer.json'
+      - 'composer.lock'
+    types:
+      - opened
+      - reopened
+      - synchronize
 
 jobs:
   test: