Bump actions/download-artifact from 6.0.0 to 7.0.0 (#1070)

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 6.0.0 to 7.0.0.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@018cc2c...37930b1)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-version: 7.0.0
  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/deploy-backend.yml

@@ -108,7 +108,7 @@ jobs:
           terraform_version: "1.12.2"
 
       - name: Retrieve Terraform Plan
-        uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53
+        uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131
         with:
           name: ${{ env.ENVIRONMENT }}-${{ env.SUB_ENVIRONMENT }}-tfplan
           path: infrastructure/instance