Update rake requirement from ~> 0.8.7 to ~> 12.3.3#20

dependabot[bot] wants to merge 1 commit intomastermtodd/pingdom-client:masterfrom

dependabot/bundler/rake-tw-12.3.3mtodd/pingdom-client:dependabot/bundler/rake-tw-12.3.3Copy head branch name to clipboard