Bump webpack from 4.29.6 to 4.34.0 (#11108)

Bumps [webpack](https://github.com/webpack/webpack) from 4.29.6 to 4.34.0.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](https://github.com/webpack/webpack/compare/v4.29.6...v4.34.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -158,7 +158,7 @@
     "throng": "^4.0.0",
     "tiny-queue": "^0.2.1",
     "uuid": "^3.1.0",
-    "webpack": "^4.29.6",
+    "webpack": "^4.34.0",
     "webpack-assets-manifest": "^3.1.1",
     "webpack-bundle-analyzer": "^3.3.2",
     "webpack-cli": "^3.3.2",