Bump docker/login-action from 3 to 4 (#540)

Bumps [docker/login-action](https://github.com/docker/login-action) from 3 to 4.
- [Release notes](https://github.com/docker/login-action/releases)
- [Commits](docker/login-action@v3...v4)

---
updated-dependencies:
- dependency-name: docker/login-action
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

@@ -68,7 +68,7 @@ jobs:
         aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
         aws-region: ${{ env.AWS_REGION }}
     - name: Login to ECR
-      uses: docker/login-action@v3
+      uses: docker/login-action@v4
       with:
         registry: ${{ secrets.AWS_ACCOUNT_ID }}.dkr.ecr.${{ env.AWS_REGION }}.amazonaws.com
     - name: Set up QEMU

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

@@ -72,7 +72,7 @@ jobs:
         aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
         aws-region: ${{ env.AWS_REGION }}
     - name: Login to ECR
-      uses: docker/login-action@v3
+      uses: docker/login-action@v4
       with:
         registry: ${{ secrets.AWS_ACCOUNT_ID }}.dkr.ecr.${{ env.AWS_REGION }}.amazonaws.com
     - name: Set up QEMU