Bump plug_cowboy from 2.7.2 to 2.7.4 in /tests/support/test_server#177

dependabot[bot] wants to merge 1 commit intomainliveview-native/phoenix-channels-client:mainfrom

dependabot/hex/tests/support/test_server/plug_cowboy-2.7.4liveview-native/phoenix-channels-client:dependabot/hex/tests/support/test_server/plug_cowboy-2.7.4Copy head branch name to clipboard