test(test:unit-jest): fix all failing tests for this script

We needed to align new cheerio and enzyme
APIS with tests.

Refs #7341

test/unit/bugs/3199-sanitization-escaping.jsx

@@ -16,6 +16,6 @@ describe("UI-3199: Sanitized Markdown causing code examples to be double escaped
     let el = render(<Markdown {...props}/>)
 
     expect(el.find("code").first().text()).toEqual("{\"abc\": \"def\"}\n")
-    expect(el.find("code").first().html()).toEqual("{&quot;abc&quot;: &quot;def&quot;}\n")
+    expect(el.find("code").first().html()).toEqual("{\"abc\": \"def\"}\n")
   })
 })