Bump js-yaml from 3.13.1 to 4.1.1

Bumps [js-yaml](https://github.com/nodeca/js-yaml) from 3.13.1 to 4.1.1.
- [Changelog](https://github.com/nodeca/js-yaml/blob/master/CHANGELOG.md)
- [Commits](nodeca/js-yaml@3.13.1...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

@@ -59,7 +59,7 @@
     "geit": "0.0.7",
     "ghrequestor": "^0.1.7",
     "htmlencode": "0.0.4",
-    "js-yaml": "^3.13.1",
+    "js-yaml": "^4.1.1",
     "linebyline": "^1.3.0",
     "lodash": "^4.17.21",
     "luxon": "^2.5.2",