No double runs on PR's

Author: casperbakker

.github/workflows/phpstan.yml

@@ -1,6 +1,10 @@
 name: Static analysis (phpstan)
 
-on: [push, pull_request]
+on:
+  push:
+    branches:
+      - main
+  pull_request:
 
 jobs:
   build:

.github/workflows/phpunit.yml

@@ -1,6 +1,10 @@
 name: Unit tests (phpunit)
 
-on: [push, pull_request]
+on:
+  push:
+    branches:
+      - main
+  pull_request:
 
 jobs:
   build: