chore(deps): bump actions/checkout from 2 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2...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>

Author: dependabot[bot]

.github/workflows/crawl.yml

@@ -8,7 +8,7 @@ jobs:
     container:
       image: italia/publiccode-crawler:latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - run: publiccode-crawler crawl
         env:
           CRAWLER_DATADIR: /tmp/data

.github/workflows/lint.yml

@@ -4,7 +4,7 @@ jobs:
   go-lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-go@v3
         with:
           go-version: '1.21'

.github/workflows/release.yml

@@ -17,7 +17,7 @@ jobs:
         id: go
       -
         name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       -
         name: Unshallow
         run: git fetch --prune --unshallow

.github/workflows/test_and_publish_docker_image.yml

@@ -10,7 +10,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           # The build job will use the .git directory to
           # infer the current version to embed in the binary