add setup sbt

Author: lichye

.github/workflows/test.yml

@@ -89,6 +89,11 @@ jobs:
       with:
         path: ~/.sbt
         key: ${{ runner.os }}-sbt-${{ hashFiles('**/build.sbt') }}
+    
+    - name: Set up SBT
+      uses: coursier/setup-action@v1
+      with:
+        apps: sbt
 
     - name: Compile
       run: sbt compile