Update dependency typescript to v3.8.3

package-lock.json

@@ -14928,9 +14928,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "3.5.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.5.3.tgz",
-      "integrity": "sha512-ACzBtm/PhXBDId6a6sDJfroT2pOWt/oOnk4/dElG5G33ZL776N3Y6/6bKZJBFpd+b05F3Ct9qDjMeJmRWtE2/g==",
+      "version": "3.8.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.8.3.tgz",
+      "integrity": "sha512-MYlEfn5VrLNsgudQTVJeNaQFUAI7DkhnOjdpAp4T+ku1TfQClewlbSuTVHiA+8skNBgaf02TL/kLOvig4y3G8w==",
       "dev": true
     },
     "uglify-js": {

package.json

@@ -65,7 +65,7 @@
     "tslint-config-semistandard": "8.0.1",
     "tslint-react": "4.0.0",
     "typed-css-modules": "0.4.2",
-    "typescript": "3.5.3",
+    "typescript": "3.8.3",
     "url-loader": "2.1.0",
     "webpack": "4.39.3",
     "webpack-bundle-analyzer": "3.4.1",