Bump typescript from 3.6.3 to 4.1.5

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.6.3 to 4.1.5.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v3.6.3...v4.1.5)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

package.json

@@ -38,7 +38,7 @@
     "ts-jest": "^24.1.0",
     "tslint": "^5.16.0",
     "tslint-config-airbnb": "^5.11.2",
-    "typescript": "^3.6.3"
+    "typescript": "^4.1.5"
   },
   "dependencies": {
     "graylog2": "^0.2.1",

yarn.lock

@@ -3271,10 +3271,14 @@ typedarray@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
 
-typescript@^3.4.3, typescript@^3.6.3:
+typescript@^3.4.3:
   version "3.6.3"
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.6.3.tgz#fea942fabb20f7e1ca7164ff626f1a9f3f70b4da"
 
+typescript@^4.1.5:
+  version "4.1.5"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.1.5.tgz#123a3b214aaff3be32926f0d8f1f6e704eb89a72"
+
 uglify-js@^3.1.4:
   version "3.5.11"
   resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.5.11.tgz#833442c0aa29b3a7d34344c7c63adaa3f3504f6a"