Updates triggers for test actions

Author: liudmylaru

.github/workflows/run-unittests-default_setup.yml

@@ -5,7 +5,7 @@ on:
   push:
     branches: [ "main" ]
   pull_request:
-    branches: [ "main" ]
+    types: [opened, reopened]
 
 # Cancel in progress workflows on pull_requests.
 # https://docs.github.com/en/actions/using-jobs/using-concurrency#example-using-a-fallback-value

.github/workflows/run-unittests-py38-cov-report.yml

@@ -5,7 +5,7 @@ on:
   push:
     branches: [ "main" ]
   pull_request:
-    branches: [ "main" ]
+    types: [opened, reopened]
 
 # Cancel in progress workflows on pull_requests.
 # https://docs.github.com/en/actions/using-jobs/using-concurrency#example-using-a-fallback-value

.github/workflows/run-unittests-py39-py310.yml

@@ -5,7 +5,7 @@ on:
   push:
     branches: [ "main" ]
   pull_request:
-    branches: [ "main" ]
+    types: [opened, reopened]
 
 # Cancel in progress workflows on pull_requests.
 # https://docs.github.com/en/actions/using-jobs/using-concurrency#example-using-a-fallback-value