update workflows for 1.x branch

Author: mglaman

.github/workflows/php.yml

@@ -1,9 +1,9 @@
 name: Tests
 on:
   push:
-    branches: [main]
+    branches: [1.x]
   pull_request:
-    branches: [main]
+    branches: [1.x]
   schedule:
     - cron: 0 0 * * *
 

.github/workflows/phpstan-dev.yml

@@ -1,9 +1,9 @@
 name: PHPStan other versions
 on:
   push:
-    branches: [main]
+    branches: [1.x]
   pull_request:
-    branches: [main]
+    branches: [1.x]
   schedule:
     - cron: 0 0 * * *
 jobs:
@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         phpstan:
-          - '1.11.x-dev'
+          - '1.12.x-dev'
     steps:
       - name: "Checkout"
         uses: "actions/checkout@v4"