Run actions on push as well

Signed-off-by: Raimund Schlüßler <raimund.schluessler@mailbox.org>

.github/workflows/build.yml

@@ -1,6 +1,7 @@
 name: Build
 on:
   pull_request:
+  push:
     branches:
       - master
       - stable*

.github/workflows/lint.yml

@@ -1,5 +1,10 @@
 name: Lint
-on: pull_request
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+      - stable*
 
 jobs:
   php-linters:

.github/workflows/test.yml

@@ -1,6 +1,7 @@
 name: Test
 on:
   pull_request:
+  push:
     branches:
       - master
       - stable*