Update devDependencies. (#2709)

* @babel/cli                       ^7.8.4  →  ^7.10.1
* @babel/core                      ^7.9.0  →  ^7.10.1
* @babel/plugin-external-helpers   ^7.8.3  →  ^7.10.1
* @babel/preset-env                ^7.9.0  →  ^7.10.1
* autoprefixer                     ^9.7.5  →   ^9.8.0
* css-loader                       ^3.4.2  →   ^3.5.3
* eslint                           ^6.8.0  →   ^7.1.0
* eslint-plugin-compat             ^3.5.1  →   ^3.7.0
* node-sass                       ^4.13.1  →  ^4.14.1
* nodemon                          ^2.0.2  →   ^2.0.4
* postcss-cli                      ^7.1.0  →   ^7.1.1
* rollup                           ^2.3.2  →  ^2.11.2
* style-loader                     ^1.1.3  →   ^1.2.1
* terser                          ^4.6.10  →   ^4.7.0

package.json

@@ -127,28 +127,28 @@
     "toastr": "^2.1.4"
   },
   "devDependencies": {
-    "@babel/cli": "^7.8.4",
-    "@babel/core": "^7.9.0",
-    "@babel/plugin-external-helpers": "^7.8.3",
-    "@babel/preset-env": "^7.9.0",
-    "autoprefixer": "^9.7.5",
+    "@babel/cli": "^7.10.1",
+    "@babel/core": "^7.10.1",
+    "@babel/plugin-external-helpers": "^7.10.1",
+    "@babel/preset-env": "^7.10.1",
+    "autoprefixer": "^9.8.0",
     "babel-eslint": "^10.1.0",
     "browser-sync": "^2.26.7",
     "clean-css-cli": "^4.3.0",
-    "css-loader": "^3.4.2",
-    "eslint": "^6.8.0",
-    "eslint-plugin-compat": "^3.5.1",
+    "css-loader": "^3.5.3",
+    "eslint": "^7.1.0",
+    "eslint-plugin-compat": "^3.7.0",
     "extract-text-webpack-plugin": "^3.0.2",
-    "node-sass": "^4.13.1",
+    "node-sass": "^4.14.1",
     "node-sass-package-importer": "^5.3.2",
-    "nodemon": "^2.0.2",
+    "nodemon": "^2.0.4",
     "npm-run-all": "^4.1.5",
     "path": "^0.12.7",
-    "postcss-cli": "^7.1.0",
-    "rollup": "^2.3.2",
+    "postcss-cli": "^7.1.1",
+    "rollup": "^2.11.2",
     "rollup-plugin-babel": "^4.4.0",
     "set-value": "^3.0.2",
-    "style-loader": "^1.1.3",
-    "terser": "^4.6.10"
+    "style-loader": "^1.2.1",
+    "terser": "^4.7.0"
   }
 }