⬆️ Bump actions/cache from 2.1.6 to 2.1.7 (#57)

Bumps [actions/cache](https://github.com/actions/cache) from 2.1.6 to 2.1.7.
- [Release notes](https://github.com/actions/cache/releases)
- [Commits](https://github.com/actions/cache/compare/v2.1.6...v2.1.7)

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

Signed-off-by: dependabot[bot] <support@github.com>

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

.github/workflows/ci.yaml

@@ -129,7 +129,7 @@ jobs:
         uses: actions/checkout@v2.4.0
       - name: 🏗 Set up build cache
         id: cache
-        uses: actions/cache@v2.1.6
+        uses: actions/cache@v2.1.7
         with:
           path: /tmp/.docker-cache
           key: docker-${{ matrix.architecture }}-${{ github.sha }}

.github/workflows/deploy.yaml

@@ -72,7 +72,7 @@ jobs:
         uses: actions/checkout@v2.4.0
       - name: 🏗 Set up build cache
         id: cache
-        uses: actions/cache@v2.1.6
+        uses: actions/cache@v2.1.7
         with:
           path: /tmp/.docker-cache
           key: docker-${{ matrix.architecture }}-${{ github.sha }}