Bump-up to action/checkout@v4

Author: kelson42

.github/workflows/ci.yml

@@ -80,7 +80,7 @@ jobs:
       run: echo "##[set-output name=branch;]$(echo ${GITHUB_REF#refs/heads/})"
       id: extract_branch
     - name: Checkout code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Install dependencies
       uses: kiwix/kiwix-build/actions/dl_deps_archive@main
       with:

.github/workflows/docker.yml

@@ -13,7 +13,7 @@ jobs:
     name: Deploy kiwix-tools Docker Image
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v3.4.0
+      - uses: actions/checkout@v4
       - name: build and publish kiwix-tools
         uses: openzim/docker-publish-action@v10
         with:
@@ -42,7 +42,7 @@ jobs:
     runs-on: ubuntu-22.04
     needs: build-and-push-kiwix-tools
     steps:
-      - uses: actions/checkout@v3.4.0
+      - uses: actions/checkout@v4
       - name: build and publish kiwix-serve
         uses: openzim/docker-publish-action@v10
         with: