Bump webpack, webpack-assets-manifest and webpack-cli#780

dependabot[bot] wants to merge 1 commit intomasterGensouSakuya/mastodon:masterfrom

dependabot/npm_and_yarn/webpack-and-webpack-assets-manifest-and-webpack-cli-5.26.0GensouSakuya/mastodon:dependabot/npm_and_yarn/webpack-and-webpack-assets-manifest-and-webpack-cli-5.26.0Copy head branch name to clipboard