build(deps): bump immutable from 5.1.4 to 5.1.5#1573

Hyperkid123 merged 1 commit intomasterdata-driven-forms/react-forms:masterfrom

dependabot/npm_and_yarn/immutable-5.1.5data-driven-forms/react-forms:dependabot/npm_and_yarn/immutable-5.1.5Copy head branch name to clipboard