chore: change default branch from master to main (#386)

.github/workflows/codeql-analysis.yml

@@ -3,7 +3,7 @@ name: "Code Scanning"
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
 
 jobs:

.github/workflows/dev-image.yml

@@ -3,7 +3,7 @@ name: 'Dev Image CI'
 on:
   push:
     branches:
-      - master
+      - main
     paths:
       - '.github/workflows/dev-image.yml'
       - '.dockerignore'

.github/workflows/label-commenter.yml

@@ -16,7 +16,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
         with:
-          ref: master
+          ref: main
 
       - name: Label Commenter
         uses: peaceiris/actions-label-commenter@v1.3.7

.github/workflows/test.yml

@@ -3,7 +3,7 @@ name: 'Test'
 on:
   push:
     branches:
-      - master
+      - main
     paths-ignore:
       - '**.md'
   pull_request: