Update @semantic-release/release-notes-generator to the latest version 🚀#48

greenkeeper[bot] wants to merge 2 commits intomasterBBVAEngineering/ember-cli-web-components:masterfrom

greenkeeper/@semantic-release/release-notes-generator-9.0.0BBVAEngineering/ember-cli-web-components:greenkeeper/@semantic-release/release-notes-generator-9.0.0Copy head branch name to clipboard