Fix typo in workflow

Author: dklilley

.github/workflows/test-pull-request.yml

@@ -49,7 +49,7 @@ jobs:
       - name: Package vsix
         run: npm run package
       - name: npm install
-        run: npm run package-install
+        run: npm run project-install
       - name: Run Smoke tests
         run: npm run test-smoke
         env: