Bump traefik from v2.2.0 to v2.3.4 in /compose/production/traefik#79

dependabot-preview[bot] wants to merge 1 commit intomasterlinuxluigi/MapnikTileServer:masterfrom

dependabot/docker/compose/production/traefik/traefik-v2.3.4linuxluigi/MapnikTileServer:dependabot/docker/compose/production/traefik/traefik-v2.3.4Copy head branch name to clipboard