Update dependency webpack to v4.29.3

package.json

@@ -72,7 +72,7 @@
     "redux-debounce": "1.0.1",
     "taskcluster-client-web": "8.1.1",
     "taskcluster-lib-scopes": "10.0.1",
-    "webpack": "4.29.1",
+    "webpack": "4.29.3",
     "webpack-cli": "3.2.3"
   },
   "devDependencies": {

yarn.lock

@@ -8320,14 +8320,6 @@ scheduler@^0.12.0:
     loose-envify "^1.1.0"
     object-assign "^4.1.1"
 
-schema-utils@^0.4.4:
-  version "0.4.7"
-  resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-0.4.7.tgz#ba74f597d2be2ea880131746ee17d0a093c68187"
-  integrity sha512-v/iwU6wvwGK8HbU9yi3/nhGzP0yGSuhQMzL6ySiec1FSrZZDkhm4noOSWzrNFo/jEc+SJY6jRTwuwbSXJPDUnQ==
-  dependencies:
-    ajv "^6.1.0"
-    ajv-keywords "^3.1.0"
-
 schema-utils@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-1.0.0.tgz#0b79a93204d7b600d4b2850d1f66c2a34951c770"
@@ -9566,10 +9558,10 @@ webpack-sources@^1.1.0, webpack-sources@^1.3.0:
     source-list-map "^2.0.0"
     source-map "~0.6.1"
 
-webpack@4.29.1:
-  version "4.29.1"
-  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.29.1.tgz#a6533d7bc6a6b1ed188cb029d53d231be777e175"
-  integrity sha512-dY3KyQIVeg6cDPj9G5Bnjy9Pt9SoCpbNWl0RDKHstbd3MWe0dG9ri4RQRpCm43iToy3zoA1IMOpFkJ8Clnc7FQ==
+webpack@4.29.3:
+  version "4.29.3"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-4.29.3.tgz#e0b406a7b4201ed5e4fb4f84fd7359f9a7db4647"
+  integrity sha512-xPJvFeB+8tUflXFq+OgdpiSnsCD5EANyv56co5q8q8+YtEasn5Sj3kzY44mta+csCIEB0vneSxnuaHkOL2h94A==
   dependencies:
     "@webassemblyjs/ast" "1.7.11"
     "@webassemblyjs/helper-module-context" "1.7.11"
@@ -9590,7 +9582,7 @@ webpack@4.29.1:
     mkdirp "~0.5.0"
     neo-async "^2.5.0"
     node-libs-browser "^2.0.0"
-    schema-utils "^0.4.4"
+    schema-utils "^1.0.0"
     tapable "^1.1.0"
     terser-webpack-plugin "^1.1.0"
     watchpack "^1.5.0"