Fix rbxtsc command for building unit tests place

Author: noahwillcrow

.github/workflows/CI.yml

@@ -28,7 +28,7 @@ jobs:
       - name: install local npm packages
         run: npm i --production=false
       - name: compile typescript code
-        run: rbxtsc --type=game
+        run: rbxtsc --type=game --rojo=.\\unit-testing.project.json
       - name: install foreman
         uses: rojo-rbx/setup-foreman@v1
         with: