⬆️ Bump actions/cache from v2.1.4 to v2.1.5 (#59)

Bumps [actions/cache](https://github.com/actions/cache) from v2.1.4 to v2.1.5.
- [Release notes](https://github.com/actions/cache/releases)
- [Commits](https://github.com/actions/cache/compare/v2.1.4...1a9e2138d905efd099035b49d8b7a3888c653ca8)

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@v2.3.4
       - name: 🏗 Set up build cache
         id: cache
-        uses: actions/cache@v2.1.4
+        uses: actions/cache@v2.1.5
         with:
           path: /tmp/.docker-cache
           key: docker-${{ github.ref }}-${{ matrix.architecture }}-${{ github.sha }}

.github/workflows/deploy.yaml

@@ -68,7 +68,7 @@ jobs:
         uses: actions/checkout@v2.3.4
       - name: 🏗 Set up build cache
         id: cache
-        uses: actions/cache@v2.1.4
+        uses: actions/cache@v2.1.5
         with:
           path: /tmp/.docker-cache
           key: docker-${{ github.ref }}-${{ matrix.architecture }}-${{ github.sha }}