Cleanup & update build.sbt (zio#9310)

* Cleanup `build.sbt` and update dependencies

* Use `CrossType.Pure` wherever possible

* Use Scala 2 version of refined in test-refined

* Cross-build benchmarks and get test-junit tests working for Scala 3

* Use same version of surefire plugin

* Fix benchmarks module for Scala 2.12

* Fix configuration documentation example

.github/workflows/ci.yml

@@ -134,15 +134,8 @@ jobs:
         check-latest: true
     - name: Cache scala dependencies
       uses: coursier/cache-action@v6
-    - name: Test 2.12
-      if: ${{ startsWith(matrix.scala, '2.12.') }}
-      run: sbt -v ++${{ matrix.scala }} test${{ matrix.platform }}
-    - name: Test 2.13
-      if: ${{ startsWith(matrix.scala, '2.13.') }}
+    - name: Run tests
       run: sbt -v ++${{ matrix.scala }} test${{ matrix.platform }}
-    - name: Test 3
-      if: ${{ startsWith(matrix.scala, '3.') }}
-      run: sbt -v ++${{ matrix.scala }} test${{ matrix.platform }}3
     - name: Upload Test Results 2.12
       if: ${{ startsWith(matrix.scala, '2.12.') }}
       uses: actions/upload-artifact@v3

benchmarks/src/main/scala/zio/NewEncodingBenchmark.scala

@@ -73,7 +73,7 @@ object Classic {
       cur match {
         case FlatMap(first, andThen) =>
           cur = first
-          stack.push(andThen)
+          stack.push(andThen.asInstanceOf[ErasedK])
 
         case Succeed(thunk) =>
           val value = thunk()