ci: Install the enterprise package in enterprise workflow

Before it only verified the package, which made it unable to be
used by the python package. Now it installs it to the local repository.

Author: Christopher-Chianelli

Diff for: .github/workflows/downstream_python_enterprise.yml

@@ -147,7 +147,7 @@ jobs:
       - name: Quickly Build timefold-solver-enterprise
         working-directory: ./timefold-solver-enterprise
         shell: bash
-        run: mvn -B -Dquickly clean verify
+        run: mvn -B -Dquickly clean install
       - name: Build with Maven to install parent poms for python build
         working-directory: ./timefold-solver-python
         run: mvn -B --fail-at-end clean install