Update actions/checkout action to v6

Author: renovate[bot]

.github/workflows/lint-only.yml

@@ -12,7 +12,7 @@ jobs:
       FORCE_COLOR: 1
     name: Node ${{ matrix.node }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: actions/setup-node@v4

.github/workflows/test.yml

@@ -15,7 +15,7 @@ jobs:
       FORCE_COLOR: 1
     name: Node ${{ matrix.node }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - uses: actions/setup-node@v4

actions/label-actions/.github/workflows/test.yml

@@ -14,7 +14,7 @@ jobs:
       FORCE_COLOR: 1
     name: Node ${{ matrix.node }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node }}