build: bump actions/checkout from 5 to 6 (#262)

Author: dependabot[bot]

.github/workflows/clang-format-image.yml

@@ -51,7 +51,7 @@ jobs:
           - {version: "4.0", ubuntu: "bionic"}
           - {version: "3.9", ubuntu: "bionic"}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Parse version tags
         run: |
           VERSION="${{ matrix.version-pair.version }}"

.github/workflows/release.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-slim
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Release with Notes

.github/workflows/shell-lint.yml

@@ -13,7 +13,7 @@ jobs:
       SHFMT_VERSION: 3.0.1
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     - uses: ludeeus/action-shellcheck@2.0.0
 

.github/workflows/tests.yml

@@ -42,7 +42,7 @@ jobs:
           - 20
           - 21
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Build and test the Docker image
       run: test/test.sh ${{ matrix.clang-format-version }}
   e2e:
@@ -82,7 +82,7 @@ jobs:
             exclude: 'capital'
             known_fail: false
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Run clang-format style check for C/C++ programs.
         id: check
         uses: ./../clang-format-action