Bump @ember/test-helpers from 2.9.4 to 2.9.6 in /smoke-test-app#1102

dependabot[bot] wants to merge 1 commit intomainember-cli/ember-try:mainfrom

dependabot/npm_and_yarn/smoke-test-app/ember/test-helpers-2.9.6ember-cli/ember-try:dependabot/npm_and_yarn/smoke-test-app/ember/test-helpers-2.9.6Copy head branch name to clipboard