chore: Update Sentry docs (#249)

Author: zoryana94

README.md

@@ -192,9 +192,16 @@ Please note that "invisible" simply means that no hCaptcha button will be render
 3. #### Make sure you are using `reCaptchaCompat=false` if you have the reCAPTCHA JS loaded on the same page.
     The hCaptcha "compatibility mode" will interfere with reCAPTCHA, as it adds properties with the same name. If for any reason you are running both hCaptcha and reCAPTCHA in parallel (we recommend only running hCaptcha) then please disable our compatibility mode.
 
-4. #### Avoid conflicts with legacy Sentry package usage on react-hcaptcha 1.9.0+
-    If you are using Sentry 7.x in your React app, this can conflict with the upstream `hcaptcha-loader` package's Sentry error tracing. You can avoid this issue by setting the `sentry` prop to `false`.
 
+### Sentry
+
+If the `sentry` flag is enabled, the upstream `hcaptcha-loader` package expects the Sentry SDK, version 8.x or later.
+
+If you have an older `@sentry/browser` client version on your site, it may take precedence over the bundled version. In this case you may see a console error like "g.setPropagationContext is not a function" due to the hcaptcha-loader trying to call methods only available on newer Sentry clients.
+
+To resolve this, update the version of the Sentry client you are including on your site to 8.x or higher.
+
+You can avoid this issue by setting the `sentry` prop to `false`.
 
 
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