Bump heroku_hatchet from 7.3.3 to 7.3.4#4

dependabot[bot] wants to merge 1 commit intomasterula/heroku-buildpack-python:masterfrom

dependabot/bundler/heroku_hatchet-7.3.4ula/heroku-buildpack-python:dependabot/bundler/heroku_hatchet-7.3.4Copy head branch name to clipboard