Bump actions/cache from 2.1.6 to 2.1.7

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>

.github/workflows/build.yml

@@ -83,7 +83,7 @@ jobs:
 
       # Cache Plugin Verifier IDEs
       - name: Setup Plugin Verifier IDEs Cache
-        uses: actions/cache@v2.1.6
+        uses: actions/cache@v2.1.7
         with:
           path: ${{ steps.properties.outputs.pluginVerifierHomeDir }}/ides
           key: plugin-verifier-${{ hashFiles('build/listProductsReleases.txt') }}