ci: run the tests in the PRs

.github/workflows/commitlint.yml

@@ -1,6 +1,6 @@
 name: Commit lint
 
-on: [push]
+on: [push, pull_request]
 
 jobs:
   build:

.github/workflows/e2e.yml

@@ -1,6 +1,6 @@
 name: E2E tests
 
-on: [push]
+on: [push, pull_request]
 
 jobs:
   build:

.github/workflows/pythonapp.yml

@@ -1,6 +1,6 @@
 name: Python application
 
-on: [push]
+on: [push, pull_request]
 
 jobs:
   build: