build(deps): bump actions/checkout from 3 to 4 (#117)

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] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/auto-merge.yml

@@ -7,7 +7,7 @@ jobs:
   auto-merge:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: ahmadnassri/action-dependabot-auto-merge@v2
         with:
           target: minor

.github/workflows/docker-build.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-20.04
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Fill GitHub Environment Variables
         uses: FranzDiebold/github-env-vars-action@v2

.github/workflows/docker-release.yml

@@ -25,7 +25,7 @@ jobs:
       aws-cli-version: ${{ steps.prep.outputs.aws-cli-version }}
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Fill GitHub Environment Variables
         uses: FranzDiebold/github-env-vars-action@v2
@@ -58,7 +58,7 @@ jobs:
     runs-on: ubuntu-20.04
     needs: init
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Set up Docker Buildx
         id: buildx
@@ -120,9 +120,9 @@ jobs:
     runs-on: ubuntu-20.04
     needs: [init,build]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           repository: ems-project/elasticms-demo
           path: test/demo