fix(security): bump js-yaml resolution to ^4.3.0 (GHSA-52cp-r559-cp3m) (#14888)

fix(security): bump js-yaml resolution to ^4.3.0 — resolves https://github.com/aws-amplify/amplify-js/security/dependabot/271

The root resolutions entry pinned js-yaml to 4.2.0, which is inside the
vulnerable range of GHSA-52cp-r559-cp3m (YAML merge-key chains can force
quadratic CPU consumption; affected >=4.0.0 <4.3.0). Bumping the
resolution to ^4.3.0 forces every js-yaml specifier in yarn.lock
(^3.13.1, ^3.6.1, ^4.1.0, ^4.1.1) to the patched 4.3.0.

Author: bobbor

package.json

@@ -136,7 +136,7 @@
 		"xml2js": "0.5.0",
 		"**/form-data": "4.0.6",
 		"qs": "^6.14.1",
-		"js-yaml": "4.2.0",
+		"js-yaml": "^4.3.0",
 		"launch-editor": "^2.14.1",
 		"serialize-javascript": "^7.0.5",
 		"@tootallnate/once": "3.0.1",