Bump github.com/slack-go/slack from 0.15.0 to 0.18.0 in /lib#2425

dependabot[bot] wants to merge 1 commit intomainsmartcontractkit/chainlink-testing-framework:mainfrom

dependabot/go_modules/lib/github.com/slack-go/slack-0.18.0smartcontractkit/chainlink-testing-framework:dependabot/go_modules/lib/github.com/slack-go/slack-0.18.0Copy head branch name to clipboard