fix: quoting in site-workflows chart

[skrobul]

should render correctly now:

❯ helm template -f values.yaml -f ~/devel/undercloud-deploy/bravo-uc-iad3-dev/site-workflows/values.yaml . | grep without_dashes
                              project_id_without_dashes = "{{workflow.parameters.project_id}}"
                              print(str(uuid.UUID(project_id_without_dashes)))
                              project_id_without_dashes = "{{workflow.parameters.project_id}}"
                              print(str(uuid.UUID(project_id_without_dashes)))