Trigger actions just on push, not push and PR.

.github/workflows/pythontest.yml

@@ -2,7 +2,6 @@ name: Python tests
 
 on:
   push:
-  pull_request:
   schedule:
     - cron: "0 6 * * *" # Daily 6AM UTC build
 

.github/workflows/pythonwheels.yml

@@ -2,7 +2,6 @@ name: Build Python Wheels
 
 on:
   push:
-  pull_request:
   schedule:
     - cron: "0 6 * * *" # Daily 6AM UTC build