chore(deps): update actions/checkout action to v6

Author: renovate[bot]

.github/workflows/ci.yml

@@ -7,7 +7,7 @@ jobs:
       matrix:
         node-version: [14.x, 16.x, 18.x, 19.x]
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Node Setup
       uses: actions/setup-node@v4
       with:

.github/workflows/npm-audit-fix.yml

@@ -6,7 +6,7 @@ jobs:
   run:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: ybiquitous/npm-audit-fix-action@v6
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/npm-publish.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
     - name: Set up Node.js
       uses: actions/setup-node@v4
       with: