Bump js-yaml from 4.2.0 to 5.1.0

Bumps [js-yaml](https://github.com/nodeca/js-yaml) from 4.2.0 to 5.1.0.
- [Changelog](https://github.com/nodeca/js-yaml/blob/master/CHANGELOG.md)
- [Commits](nodeca/js-yaml@4.2.0...5.1.0)

---
updated-dependencies:
- dependency-name: js-yaml
  dependency-version: 5.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -226,7 +226,7 @@
     "is-svg": "6.0.0",
     "javascript-stringify": "^2.1.0",
     "js-cookie": "^3.0.7",
-    "js-yaml": "^4.2.0",
+    "js-yaml": "^5.1.0",
     "liquidjs": "^10.27.0",
     "lodash": "^4.18.0",
     "lodash-es": "^4.18.0",