Upgrade babel packages

package.json

@@ -78,22 +78,22 @@
     "signalr": "2.4.1"
   },
   "devDependencies": {
-    "@babel/core": "7.11.6",
-    "@babel/plugin-proposal-class-properties": "7.10.4",
-    "@babel/plugin-proposal-decorators": "7.10.5",
-    "@babel/plugin-proposal-export-default-from": "7.10.4",
-    "@babel/plugin-proposal-export-namespace-from": "7.10.4",
-    "@babel/plugin-proposal-function-sent": "7.10.4",
-    "@babel/plugin-proposal-nullish-coalescing-operator": "7.10.4",
-    "@babel/plugin-proposal-numeric-separator": "7.10.4",
-    "@babel/plugin-proposal-optional-chaining": "7.11.0",
-    "@babel/plugin-proposal-throw-expressions": "7.10.4",
+    "@babel/core": "7.13.16",
+    "@babel/plugin-proposal-class-properties": "7.13.0",
+    "@babel/plugin-proposal-decorators": "7.13.15",
+    "@babel/plugin-proposal-export-default-from": "7.12.13",
+    "@babel/plugin-proposal-export-namespace-from": "7.12.13",
+    "@babel/plugin-proposal-function-sent": "7.12.13",
+    "@babel/plugin-proposal-nullish-coalescing-operator": "7.13.8",
+    "@babel/plugin-proposal-numeric-separator": "7.12.13",
+    "@babel/plugin-proposal-optional-chaining": "7.13.12",
+    "@babel/plugin-proposal-throw-expressions": "7.12.13",
     "@babel/plugin-syntax-dynamic-import": "7.8.3",
-    "@babel/preset-env": "7.11.5",
-    "@babel/preset-react": "7.10.4",
+    "@babel/preset-env": "7.13.15",
+    "@babel/preset-react": "7.13.13",
     "autoprefixer": "9.6.1",
     "babel-eslint": "10.1.0",
-    "babel-loader": "8.1.0",
+    "babel-loader": "8.2.2",
     "babel-plugin-inline-classnames": "2.0.1",
     "babel-plugin-transform-react-remove-prop-types": "0.4.24",
     "copy-webpack-plugin": "8.1.1",