Update dependencies (mostly Symfony v3.4.6 to v3.4.19)
Update dependencies (mostly Symfony v3.4.6 to v3.4.19)

platformsh/platformsh-cli,pjcdawkins/platformsh-cli,platformsh/platformsh-cli,pjcdawkins/platformsh-cli,pjcdawkins/platformsh-cli,platformsh/platformsh-cli