Update broken link in stack trace link (#14153)

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Closes #13956

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Co-authored-by: Cursor Agent <[email protected]>

Author: sfanahata

docs/organization/integrations/integration-platform/ui-components/stacktrace-link.mdx

@@ -44,4 +44,4 @@ This feature allows you to insert a link within a stack trace frame. The link co
 
 Any time a component supports a `uri` attribute, Sentry will make a request to the third-party service using the Base URL or their `webhook_url`.
 
-For a more complete description of the grammar, see the [source code](https://github.com/getsentry/sentry/blob/master/src/sentry/api/validators/sentry_apps/schema.py).
+For a more complete description of the grammar, see the [source code](https://github.com/getsentry/sentry/blob/cdb843e95a0994e6e51f12a14dc19f7c6cfc162c/src/sentry/sentry_apps/api/parsers/schema.py).