chore(deps): update dependency typescript to v3.9.7

Author: renovate-bot

package.json

@@ -33,7 +33,7 @@
     "ts-loader": "5.4.5",
     "ts-node": "8.2.0",
     "tslint": "5.17.0",
-    "typescript": "3.5.1",
+    "typescript": "3.9.7",
     "typescript-eslint-parser": "21.0.2",
     "wdio-mocha-framework": "0.6.4",
     "wdio-sauce-service": "0.4.14",

yarn.lock

@@ -6468,9 +6468,10 @@ [email protected]:
     lodash.unescape "4.0.1"
     semver "5.5.0"
 
-[email protected]:
-  version "3.5.1"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.5.1.tgz#ba72a6a600b2158139c5dd8850f700e231464202"
+[email protected]:
+  version "3.9.7"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.7.tgz#98d600a5ebdc38f40cb277522f12dc800e9e25fa"
+  integrity sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==
 
 typescript@^2.5.1:
   version "2.9.2"