Bump js-yaml from 3.14.1 to 4.1.1

Bumps [js-yaml](https://github.com/nodeca/js-yaml) from 3.14.1 to 4.1.1.
- [Changelog](https://github.com/nodeca/js-yaml/blob/master/CHANGELOG.md)
- [Commits](nodeca/js-yaml@3.14.1...4.1.1)

---
updated-dependencies:
- dependency-name: js-yaml
  dependency-version: 4.1.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

package-lock.json

@@ -41,7 +41,7 @@
     "@splitsoftware/splitio-commons": "2.8.0",
     "bloom-filters": "^3.0.4",
     "ioredis": "^4.28.0",
-    "js-yaml": "^3.13.1",
+    "js-yaml": "^4.1.1",
     "node-fetch": "^2.7.0",
     "tslib": "^2.3.1",
     "unfetch": "^4.2.0"