use main in workflows

Change-Id: Ib59204b0a3247f5fd3feb69e4458bb752698ddad

Author: CaselIT

.github/workflows/run-on-pr.yaml

@@ -1,10 +1,10 @@
 name: Run tests on a pr
 
 on:
-  # run on pull request to master excluding changes that are only on doc or example folders
+  # run on pull request to main excluding changes that are only on doc or example folders
   pull_request:
     branches:
-      - master
+      - main
     paths-ignore:
       - "doc/**"
 

.github/workflows/run-test.yaml

@@ -1,10 +1,10 @@
 name: Run tests
 
 on:
-  # run on push in master or rel_* branches excluding changes are only on doc or example folders
+  # run on push in main or rel_* branches excluding changes are only on doc or example folders
   push:
     branches:
-      - master
+      - main
       - "rel_*"
       # branches used to test the workflow
       - "workflow_test_*"