Bump actions/cache from 2.1.6 to 2.1.7 (#136)

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](actions/cache@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/scala.yml

@@ -19,19 +19,19 @@ jobs:
       - uses: actions/checkout@v2
 
       - name: Cache jabba
-        uses: actions/cache@v2.1.6
+        uses: actions/cache@v2.1.7
         with:
           path: ~/.jabba
           key: ${{ runner.os }}-jabba-cache-${{ hashFiles('**/workflows/scala.yml') }}
 
       - name: Cache SBT ivy cache
-        uses: actions/cache@v2.1.6
+        uses: actions/cache@v2.1.7
         with:
           path: ~/.ivy2/cache
           key: ${{ runner.os }}-sbt-ivy-cache-${{ hashFiles('**/build.sbt') }}
 
       - name: Cache SBT
-        uses: actions/cache@v2.1.6
+        uses: actions/cache@v2.1.7
         with:
           path: ~/.sbt
           key: ${{ runner.os }}-sbt-${{ hashFiles('**/build.sbt') }}