Bump js-yaml from 3.14.1 to 3.14.2 in /webapp/frontend (#905)

Bumps [js-yaml](https://github.com/nodeca/js-yaml) from 3.14.1 to 3.14.2.
- [Changelog](https://github.com/nodeca/js-yaml/blob/master/CHANGELOG.md)
- [Commits](https://github.com/nodeca/js-yaml/compare/3.14.1...3.14.2)

---
updated-dependencies:
- dependency-name: js-yaml
  dependency-version: 3.14.2
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

webapp/frontend/package-lock.json

@@ -8140,10 +8140,11 @@
             "dev": true
         },
         "node_modules/js-yaml": {
-            "version": "3.14.1",
-            "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.14.1.tgz",
-            "integrity": "sha512-okMH7OXXJ7YrN9Ok3/SXrnu4iX9yOk+25nqX4imS2npuvTYDmo/QEZoqwZkYaIDk3jVvBOTOIEgEhaLOynBS9g==",
+            "version": "3.14.2",
+            "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.14.2.tgz",
+            "integrity": "sha512-PMSmkqxr106Xa156c2M265Z+FTrPl+oxd/rgOQy2tijQeK5TxQ43psO1ZCwhVOSdnn+RzkzlRz/eY4BgJBYVpg==",
             "dev": true,
+            "license": "MIT",
             "dependencies": {
                 "argparse": "^1.0.7",
                 "esprima": "^4.0.0"