Fix CI and upgrade dependencies (facebook#6137)

* Upgrade a bunch of dependencies

* Turn off nightly Yarn

package.json

@@ -24,21 +24,21 @@
   },
   "types": "./lib/react-app.d.ts",
   "dependencies": {
-    "@babel/core": "7.1.6",
+    "@babel/core": "7.2.2",
     "@svgr/webpack": "2.4.1",
     "babel-core": "7.0.0-bridge.0",
     "babel-eslint": "9.0.0",
     "babel-jest": "23.6.0",
-    "babel-loader": "8.0.4",
+    "babel-loader": "8.0.5",
     "babel-plugin-named-asset-import": "^0.3.0",
     "babel-preset-react-app": "^7.0.0",
     "bfj": "6.1.1",
     "case-sensitive-paths-webpack-plugin": "2.1.2",
-    "chalk": "2.4.1",
+    "chalk": "2.4.2",
     "css-loader": "1.0.0",
     "dotenv": "6.0.0",
     "dotenv-expand": "4.2.0",
-    "eslint": "5.6.0",
+    "eslint": "5.12.0",
     "eslint-config-react-app": "^3.0.6",
     "eslint-loader": "2.1.1",
     "eslint-plugin-flowtype": "2.50.1",
@@ -47,27 +47,27 @@
     "eslint-plugin-react": "7.11.1",
     "file-loader": "2.0.0",
     "fork-ts-checker-webpack-plugin-alt": "0.4.14",
-    "fs-extra": "7.0.0",
+    "fs-extra": "7.0.1",
     "html-webpack-plugin": "4.0.0-alpha.2",
     "identity-obj-proxy": "3.0.0",
     "jest": "23.6.0",
-    "jest-pnp-resolver": "1.0.1",
+    "jest-pnp-resolver": "1.0.2",
     "jest-resolve": "23.6.0",
     "mini-css-extract-plugin": "0.4.3",
     "optimize-css-assets-webpack-plugin": "5.0.1",
-    "pnp-webpack-plugin": "1.1.0",
+    "pnp-webpack-plugin": "1.2.1",
     "postcss-flexbugs-fixes": "4.1.0",
     "postcss-loader": "3.0.0",
-    "postcss-preset-env": "6.3.1",
+    "postcss-preset-env": "6.5.0",
     "postcss-safe-parser": "4.0.1",
     "react-app-polyfill": "^0.2.0",
     "react-dev-utils": "^7.0.1",
-    "resolve": "1.8.1",
+    "resolve": "1.9.0",
     "sass-loader": "7.1.0",
-    "style-loader": "0.23.0",
-    "terser-webpack-plugin": "1.1.0",
-    "url-loader": "1.1.1",
-    "webpack": "4.19.1",
+    "style-loader": "0.23.1",
+    "terser-webpack-plugin": "1.2.1",
+    "url-loader": "1.1.2",
+    "webpack": "4.28.3",
     "webpack-dev-server": "3.1.14",
     "webpack-manifest-plugin": "2.0.4",
     "workbox-webpack-plugin": "3.6.3"