Bump rocket from 0.4.5 to 0.4.7 in /heart#28

dependabot[bot] wants to merge 1 commit intomasterOpenTechMeetup-Leipzig/volunteero:masterfrom

dependabot/cargo/heart/rocket-0.4.7OpenTechMeetup-Leipzig/volunteero:dependabot/cargo/heart/rocket-0.4.7Copy head branch name to clipboard