update branchname from master to main in ci workflows

.github/workflows/code-scan.yml

@@ -2,9 +2,9 @@ name: code scan
 
 on:
   push:
-    branches: [master]
+    branches: [main]
   pull_request:
-    branches: [master]
+    branches: [main]
   schedule:
     - cron:  '30 5 * * *'
 
@@ -56,4 +56,4 @@ jobs:
       #   make release
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v1
+        uses: github/codeql-action/analyze@v1

.github/workflows/python-linting.yml

@@ -5,9 +5,9 @@ name: Python linting
 
 on:
   push:
-    branches: [ master ]
+    branches: [ main ]
   pull_request:
-    branches: [ master ]
+    branches: [ main ]
   schedule:
     - cron:  '30 5 * * *'
 

.github/workflows/python-package-conda.yml

@@ -2,9 +2,9 @@ name: Python Package using Conda
 
 on:
   push:
-    branches: [ master ]
+    branches: [ main ]
   pull_request:
-    branches: [ master ]
+    branches: [ main ]
   schedule:
     - cron:  '30 5 * * *'
 

.github/workflows/pythonpackage.yml

@@ -5,9 +5,9 @@ name: Python package test
 
 on:
   push:
-    branches: [ master ]
+    branches: [ main ]
   pull_request:
-    branches: [ master ]
+    branches: [ main ]
   schedule:
     - cron:  '30 5 * * *'