clean build in 'Build & Test'

Author: phelps-sg

.github/workflows/continuous-integration.yml

@@ -45,7 +45,7 @@ jobs:
           cache: 'sbt'
 
       - name: Build & Test
-        run: sbt ++${{ matrix.scala }} testWithCoverage
+        run: sbt ++${{ matrix.scala }} clean testWithCoverage
 
       - name: Upload coverage report (Cobertura)
         uses: actions/[email protected]