build(deps): bump async from 2.6.3 to 2.6.4 in /packages/webapp#10

dependabot[bot] wants to merge 1 commit intomastermarvindv/markdown-notebook:masterfrom

dependabot/npm_and_yarn/packages/webapp/async-2.6.4marvindv/markdown-notebook:dependabot/npm_and_yarn/packages/webapp/async-2.6.4Copy head branch name to clipboard