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>

Author: dependabot[bot]

.github/workflows/integration-tests-sqlserver.yml

@@ -35,7 +35,7 @@ jobs:
           DBT_TEST_USER_3: DBT_TEST_USER_3
           COLLATION: ${{ matrix.collation }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Install dependencies
         run: pip install -r dev_requirements.txt

.github/workflows/publish-docker.yml

@@ -20,7 +20,7 @@ jobs:
       packages: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Log in to the Container registry
         uses: docker/login-action@v2.1.0
@@ -50,7 +50,7 @@ jobs:
       packages: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Log in to the Container registry
         uses: docker/login-action@v2.1.0

.github/workflows/release-version.yml

@@ -11,7 +11,7 @@ jobs:
     name: Release new version
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: actions/setup-python@v4
         with:

.github/workflows/unit-tests.yml

@@ -28,7 +28,7 @@ jobs:
         password: ${{ secrets.github_token }}
     steps:
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Install dependencies
         run: pip install -r dev_requirements.txt