[Snyk] Security upgrade rack from 1.6.4 to 3.0.0#7

snyk-bot wants to merge 1 commit intomasterppradnesh/ruby-ex:masterfrom

snyk-fix-14f80852a1b49e5d19cebb86dca0914cppradnesh/ruby-ex:snyk-fix-14f80852a1b49e5d19cebb86dca0914cCopy head branch name to clipboard