update github actions to point to the ember-cli-fastboot workspace

Author: kiwiupover

.github/workflows/ci.yml

@@ -41,7 +41,7 @@ jobs:
       - name: Yarn Install
         run: yarn install --ignore-engines
       - name: Run Mocha Tests
-        run: yarn test:mocha
+        run: yarn workspace ember-cli-fastboot test:mocha
 
   test-ember:
     name: Ember Tests
@@ -62,5 +62,5 @@ jobs:
       - name: Yarn Install
         run: yarn install --ignore-engines
       - name: Run Tests
-        run: yarn test:ember
+        run: yarn workspace ember-cli-fastboot test:ember