docs: main branch (#1396)

Rename `master` to `main`

.github/workflows/codeql-analysis.yml

@@ -12,10 +12,10 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [ master ]
+    branches: [ main ]
   pull_request:
     # The branches below must be a subset of the branches above
-    branches: [ master ]
+    branches: [ main ]
   schedule:
     - cron: '24 6 * * 5'
 

.github/workflows/enforce-license-compliance.yml

@@ -2,7 +2,7 @@ name: Enforce License Compliance
 
 on:
   pull_request:
-    branches: [main, master]
+    branches: [main]
 
 jobs:
   enforce-license-compliance:

.github/workflows/scorecards-analysis.yml

@@ -5,7 +5,7 @@ on:
   schedule:
     - cron: '43 20 * * 1'
   push:
-    branches: [ master ]
+    branches: [ main ]
 
 # Declare default permissions as read only.
 permissions: read-all