Merge pull request #1212 from ailin-nemui/master

update github actions/checkout to new branch

.github/workflows/abicheck.yml

@@ -17,11 +17,11 @@ jobs:
           pip3 install wheel
           pip3 install meson
       - name: checkout merge ref
-        uses: actions/checkout@master
+        uses: actions/checkout@main
         with:
           path: merge.src
       - name: checkout base ref
-        uses: actions/checkout@master
+        uses: actions/checkout@main
         with:
           path: base.src
           ref: ${{ github.base_ref }}

.github/workflows/check.yml

@@ -4,7 +4,7 @@ jobs:
   install:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@master
+    - uses: actions/checkout@main
     - name: install
       uses: irssi-import/actions-irssi/check-irssi@master
       with:

.github/workflows/clangformat.yml

@@ -4,7 +4,7 @@ jobs:
   check-clang-format:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@master
+      - uses: actions/checkout@main
       - name: fetch target ref
         run:
           |