fix: Build quickly so update-child-modules work (#50)

.github/scripts/change_versions.sh

@@ -10,7 +10,8 @@
 # as scanning the text of the POM would be unreliable.
 echo "     New version: $NEW_VERSION"
 echo "     New Python Version: $NEW_VERSION_PYTHON"
+mvn clean install -Dquickly
 mvn versions:update-parent "-DparentVersion=[$NEW_VERSION,$NEW_VERSION]" -DallowSnapshots=true -DgenerateBackupPoms=false
-mvn versions:update-child-modules
+mvn versions:update-child-modules -DallowSnapshots=true -DgenerateBackupPoms=false
 sed -i "s/^timefold_solver_python_version.*=.*/timefold_solver_python_version = '$NEW_VERSION_PYTHON'/" setup.py
 git commit -am "build: switch to version $NEW_VERSION_PYTHON"