Bump actions/checkout from 1 to 4 (#334)

Bumps [actions/checkout](https://github.com/actions/checkout) from 1 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v1...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>

.github/workflows/aws-ecs-deploy-backend.yml

@@ -28,7 +28,7 @@ jobs:
     - name: Debug Action
       uses: hmarr/[email protected]
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         ref: ${{ github.event.inputs.ref }}
     - name: Set AWS Env & Image Tag per workflow
@@ -57,7 +57,7 @@ jobs:
     needs: [setup_env]
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         ref: ${{ github.event.inputs.ref }}
     - name: Configure AWS credentials

.github/workflows/aws-ecs-deploy-frontend.yml

@@ -28,7 +28,7 @@ jobs:
     - name: Debug Action
       uses: hmarr/[email protected]
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         ref: ${{ github.event.inputs.ref }}
     - name: Set AWS Env & Image Tag per workflow
@@ -61,7 +61,7 @@ jobs:
     needs: [setup_env]
     steps:
     - name: Checkout
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         ref: ${{ github.event.inputs.ref }}
     - name: Configure AWS credentials

.github/workflows/build-pull-request.yml

@@ -9,7 +9,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - uses: ./.github/actions/setup-frontend
       - run: npm run build:ui
         working-directory: frontend

.github/workflows/deploy-docs.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout master
-      uses: actions/checkout@v1
+      uses: actions/checkout@v4
     - name: Install dependencies
       run: sudo apt-get update
     - name: Deploy docs

.github/workflows/firebase-hosting-merge.yml

@@ -11,7 +11,7 @@ jobs:
   build_and_deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: ./.github/actions/setup-frontend
       - run: npm run build:ui
         working-directory: frontend

.github/workflows/frontend-checks.yml

@@ -18,7 +18,7 @@ jobs:
         working-directory: frontend
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: ./.github/actions/setup-frontend
 
       - name: Linting

.github/workflows/python-tests.yml

@@ -22,7 +22,7 @@ jobs:
         ports:
           - 5432:5432
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Python 3.8 Setup
       uses: actions/setup-python@v2
       with: