Bump immutable from 4.3.7 to 4.3.8#4193

imnasnainaec merged 2 commits intomastersillsdev/TheCombine:masterfrom

dependabot/npm_and_yarn/immutable-4.3.8sillsdev/TheCombine:dependabot/npm_and_yarn/immutable-4.3.8Copy head branch name to clipboard