feat(js-yaml): update our main YAML parser to v4.1.0

Closes #6804

src/core/plugins/configs/helpers.js

@@ -2,7 +2,7 @@ import YAML from "js-yaml"
 
 export const parseYamlConfig = (yaml, system) => {
   try {
-    return YAML.safeLoad(yaml)
+    return YAML.load(yaml)
   } catch(e) {
     if (system) {
       system.errActions.newThrownErr( new Error(e) )

src/core/plugins/spec/actions.js

@@ -62,7 +62,7 @@ export const parseToJson = (str) => ({specActions, specSelectors, errActions}) =
   try {
     str = str || specStr()
     errActions.clear({ source: "parser" })
-    json = YAML.safeLoad(str)
+    json = YAML.load(str)
   } catch(e) {
     // TODO: push error to state
     console.error(e)

src/core/utils.js

@@ -648,7 +648,7 @@ const getYamlSampleSchema = (schema, config, contentType, exampleOverride) => {
   const jsonExample = getStringifiedSampleForSchema(schema, config, contentType, exampleOverride)
   let yamlString
   try {
-    yamlString = YAML.safeDump(YAML.safeLoad(jsonExample), {
+    yamlString = YAML.dump(YAML.load(jsonExample), {
 
       lineWidth: -1 // don't generate line folds
     })