Merge pull request #17 from xuwei-k/patch-2

add `setup-sbt` action

Author: eed3si9n

.github/workflows/tests.yml

@@ -18,5 +18,6 @@ jobs:
       with:
         java-version: '11'
         distribution: 'adopt'
+    - uses: sbt/setup-sbt@v1
     - name: Run tests
       run: sbt -Dfile.encoding=UTF8 -J-XX:ReservedCodeCacheSize=256M test scripted