Run all workflows on pull requests

.github/workflows/hacs-validate.yml

@@ -2,6 +2,7 @@ name: Validate with HACS
 
 on:
   push:
+  pull_request:
   schedule:
     - cron: '0 0 * * *'
 

.github/workflows/hassfest-validate.yml

@@ -2,6 +2,7 @@ name: Validate with hassfest
 
 on:
   push:
+  pull_request:
   schedule:
     - cron: '0 0 * * *'
 

.github/workflows/linting.yml

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

.github/workflows/tests.yml

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