Update actions/checkout action to v6

Author: renovate[bot]

.github/workflows/deploy-docs.yml

@@ -10,7 +10,7 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           ref: ${{ github.head_ref }}
           fetch-depth: 0

.github/workflows/license-scanning-node.yml

@@ -16,7 +16,7 @@ jobs:
       matrix:
         node-version: [20.x]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v4
         with:

.github/workflows/npm.yml

@@ -11,7 +11,7 @@ jobs:
     # use 'if' to prevent endless looping with npm package commit
     if: "!startsWith(github.event.head_commit.message, '[RELEASE]')"
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
       - run: git config user.email "$GITHUB_ACTOR@users.noreply.github.com"

.github/workflows/security.yml

@@ -19,7 +19,7 @@ jobs:
     continue-on-error: false
     steps:
       - name: Checkout
-        uses: actions/checkout@v4.2.2
+        uses: actions/checkout@v6.0.0
       - name: Set up Node
         uses: actions/setup-node@v4.2.0
         with: