chore(deps): update dependency typescript to v3.9.8

Author: renovate-bot

package.json

@@ -78,7 +78,7 @@
     "tslint-config-airbnb": "5.11.1",
     "tslint-config-prettier": "1.18.0",
     "tslint-react": "4.0.0",
-    "typescript": "3.4.3",
+    "typescript": "3.9.8",
     "wait-on": "3.2.0"
   },
   "jest": {

yarn.lock

@@ -12601,10 +12601,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@3.4.3:
-  version "3.4.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.4.3.tgz#0eb320e4ace9b10eadf5bc6103286b0f8b7c224f"
-  integrity sha512-FFgHdPt4T/duxx6Ndf7hwgMZZjZpB+U0nMNGVCYPq0rEzWKjEDobm4J6yb3CS7naZ0yURFqdw9Gwc7UOh/P9oQ==
+typescript@3.9.8:
+  version "3.9.8"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.8.tgz#7d937ba4e4044af7fa83d127b982f8f61ca816a4"
+  integrity sha512-nDbnFkUZZjkQ92qwKX+C+jtk4OGfU8H9toSEs3uAsl8cxLjG2sqQm6leF/pLWvm9FAEJ6KHkYMAbHYaY2ITeVg==
 
 ua-parser-js@^0.7.18:
   version "0.7.19"