Bump actions/checkout from 3 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v4)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/blacklist.yml

@@ -9,7 +9,7 @@ jobs:
   update-blacklist:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version: '3.10'

.github/workflows/deploy_workers.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Deploy
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Publish mongo-proxy
         uses: cloudflare/wrangler-action@2.0.0
         with:

.github/workflows/run.yml

@@ -29,7 +29,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Build docker image
         run: docker build -f docker/Dockerfile -t starrylines_${{ github.sha }} . --no-cache
       - name: Run

.github/workflows/tests.yml

@@ -24,7 +24,7 @@ jobs:
     name: backend
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/cache@v3
         with:
           path: |
@@ -62,7 +62,7 @@ jobs:
       run:
         working-directory: src/main/vue
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install Node.js
         uses: actions/setup-node@v3
         with:
@@ -98,7 +98,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [backend, frontend]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Download tests report
         uses: actions/download-artifact@v3
         with: