Bump js-yaml from 3.14.0 to 4.0.0

Bumps [js-yaml](https://github.com/nodeca/js-yaml) from 3.14.0 to 4.0.0.
- [Release notes](https://github.com/nodeca/js-yaml/releases)
- [Changelog](https://github.com/nodeca/js-yaml/blob/master/CHANGELOG.md)
- [Commits](nodeca/js-yaml@3.14.0...4.0.0)

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

package.json

@@ -25,7 +25,7 @@
   "author": "Julio Coelho",
   "license": "MIT",
   "dependencies": {
-    "@actions/core": "^1.2.5",
+    "@actions/core": "^1.2.6",
     "@actions/exec": "^1.0.4",
     "@actions/github": "^4.0.0",
     "semver": "^7.3.2"
@@ -41,7 +41,7 @@
     "eslint-plugin-jest": "^23.20.0",
     "jest": "^24.9.0",
     "jest-circus": "^26.4.2",
-    "js-yaml": "^3.14.0",
+    "js-yaml": "^4.0.0",
     "prettier": "2.1.1",
     "ts-jest": "^24.3.0",
     "typescript": "^4.0.2"