Bump winston from 3.11.0 to 3.12.0

Bumps [winston](https://github.com/winstonjs/winston) from 3.11.0 to 3.12.0.
- [Release notes](https://github.com/winstonjs/winston/releases)
- [Changelog](https://github.com/winstonjs/winston/blob/master/CHANGELOG.md)
- [Commits](winstonjs/winston@v3.11.0...v3.12.0)

---
updated-dependencies:
- dependency-name: winston
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

package.json

@@ -17,7 +17,7 @@
     "debug": "^4.3.4",
     "fastq": "^1.17.1",
     "triple-beam": "^1.4.1",
-    "winston": "^3.11.0",
+    "winston": "^3.12.0",
     "winston-transport": "^4.7.0"
   },
   "devDependencies": {