build: run tests pull requests for all branches (#426)

Author: olavloite

.github/workflows/integration-tests-on-emulator.yml

@@ -2,7 +2,6 @@ on:
   push:
     branches: [ main ]
   pull_request:
-    branches: [ main ]
 name: Integration tests on emulator
 jobs:
   test:

.github/workflows/samples.yml

@@ -1,6 +1,5 @@
 on:
   pull_request:
-    branches: [ main ]
 name: Run Samples
 jobs:
   samples:

.github/workflows/snippets.yml

@@ -1,6 +1,5 @@
 on:
   pull_request:
-    branches: [ main ]
 name: Run Snippets
 jobs:
   samples:

.github/workflows/unit-tests.yml

@@ -2,7 +2,6 @@ on:
   push:
     branches: [ main ]
   pull_request:
-    branches: [ main ]
 name: Unit Tests
 jobs:
   test: