Fix react-jsx error (facebook#9869)

Author: benneq

Diff for: packages/react-scripts/scripts/utils/verifyTypeScriptSetup.js

@@ -148,7 +148,7 @@ function verifyTypeScriptSetup() {
     jsx: {
       parsedValue:
         hasJsxRuntime && semver.gte(ts.version, '4.1.0-beta')
-          ? ts.JsxEmit.ReactJsx
+          ? ts.JsxEmit.ReactJSX
           : ts.JsxEmit.React,
       value:
         hasJsxRuntime && semver.gte(ts.version, '4.1.0-beta')