chore(deps): bump actions/download-artifact from 4.1.7 to 4.1.8 (aws-powertools#5203)

Bumps [actions/download-artifact](https://github.com/actions/download-artifact) from 4.1.7 to 4.1.8.
- [Release notes](https://github.com/actions/download-artifact/releases)
- [Commits](actions/download-artifact@v4.1.7...fa0a91b)

---
updated-dependencies:
- dependency-name: actions/download-artifact
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

.github/workflows/reusable_deploy_v3_layer_stack.yml

@@ -180,7 +180,7 @@ jobs:
       - name: install deps
         run: poetry install
       - name: Download artifact
-        uses: actions/download-artifact@65a9edc5881444af0b9093a5e628f2fe47ea3b2e # v4.1.7
+        uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8
         with:
           name: cdk-layer-artifact-py${{ matrix.python-version }}
           path: layer_v3

.github/workflows/reusable_deploy_v3_sar.yml

@@ -111,7 +111,7 @@ jobs:
         with:
           node-version: ${{ env.NODE_VERSION }}
       - name: Download artifact
-        uses: actions/download-artifact@65a9edc5881444af0b9093a5e628f2fe47ea3b2e # v4.1.7
+        uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16 # v4.1.8
         with:
           name: cdk-layer-artifact-py${{ matrix.python-version }}
       - name: Unzip artefact