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](https://github.com/actions/checkout/compare/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/main.yml

@@ -22,7 +22,7 @@ jobs:
         arch: ['native', 'amd64', 'arm64v8']
     steps:
       - name: 'Checkout project'
-        uses: 'actions/checkout@v3'
+        uses: 'actions/checkout@v4'
       - name: 'Register binfmt entries'
         if: "matrix.arch != 'native'"
         run: |
@@ -50,7 +50,7 @@ jobs:
         arch: ['amd64', 'arm64v8']
     steps:
       - name: 'Checkout project'
-        uses: 'actions/checkout@v3'
+        uses: 'actions/checkout@v4'
       - name: 'Download artifacts'
         uses: 'actions/download-artifact@v3'
         with:
@@ -75,7 +75,7 @@ jobs:
       contents: 'read'
     steps:
       - name: 'Checkout project'
-        uses: 'actions/checkout@v3'
+        uses: 'actions/checkout@v4'
       - name: 'Login to Docker Hub'
         uses: 'docker/login-action@v2'
         with: