Bump typescript from 3.7.2 to 3.7.3

Bumps [typescript](https://github.com/Microsoft/TypeScript) from 3.7.2 to 3.7.3.
- [Release notes](https://github.com/Microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v3.7.2...v3.7.3)

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

package.json

@@ -29,7 +29,7 @@
     "@babel/preset-env": "7.7.6",
     "@babel/preset-typescript": "7.7.4",
     "@nextcloud/browserslist-config": "^1.0.0",
-    "typescript": "3.7.2"
+    "typescript": "3.7.3"
   },
   "browserslist": [
     "extends @nextcloud/browserslist-config"