build(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)
- [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] <[email protected]>

.github/workflows/backend.yml

@@ -27,7 +27,7 @@ jobs:
       id: go
 
     - name: Check out code
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
 
     - name: Build, Lint & Check
       run: |

.github/workflows/build-container.yml

@@ -19,7 +19,7 @@ jobs:
       uses: docker/setup-buildx-action@v1
 
     - name: Check out code
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
     - name: Build image
       env:
         DOCKER_BUILDKIT: 1

.github/workflows/frontend.yml

@@ -17,7 +17,7 @@ jobs:
         node-version: [16.x]
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Use Node.js ${{ matrix.node-version }}
       uses: actions/setup-node@v1

.github/workflows/helm-chart-lint-test.yaml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout
-        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+        uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2.7.0
         with:
           fetch-depth: 0
 

.github/workflows/helm-chart-release.yml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout
-        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+        uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5 # v2.7.0
         with:
           fetch-depth: 0