Bump winston from 3.2.1 to 3.3.3 (#1591)

Bumps [winston](https://github.com/winstonjs/winston) from 3.2.1 to 3.3.3.
- [Release notes](https://github.com/winstonjs/winston/releases)
- [Changelog](https://github.com/winstonjs/winston/blob/master/CHANGELOG.md)
- [Commits](https://github.com/winstonjs/winston/compare/3.2.1...v3.3.3)

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package.json

@@ -68,7 +68,7 @@
     "pdfjs-dist": "2.4.456",
     "rxjs": "^6.6.2",
     "tslib": "^2.0.1",
-    "winston": "^3.2.1",
+    "winston": "^3.3.3",
     "zone.js": "~0.10.2"
   },
   "devDependencies": {