Bump rack from 2.2.2 to 3.0.4.2 in /2.7-slim#11

dependabot[bot] wants to merge 1 commit intomasteramaysim-au/docker-rspec-test-runner:masterfrom

dependabot/bundler/2.7-slim/rack-3.0.4.2amaysim-au/docker-rspec-test-runner:dependabot/bundler/2.7-slim/rack-3.0.4.2Copy head branch name to clipboard