Bump json from 1.7.3 to 1.8.6 in /birthday#6

dependabot[bot] wants to merge 1 commit intomastertimothyhinrichs/rsbc:masterfrom

dependabot/bundler/birthday/json-1.8.6timothyhinrichs/rsbc:dependabot/bundler/birthday/json-1.8.6Copy head branch name to clipboard