fix(validate-pr): Add sentry-mobile-updater to bot allowlist (#156)

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: stephanie-anderson

validate-pr/scripts/validate-pr.js

@@ -26,6 +26,7 @@ module.exports = async ({ github, context, core }) => {
     'github-actions[bot]',
     'javascript-sdk-gitflow[bot]',
     'renovate[bot]',
+    'sentry-mobile-updater[bot]',
   ];
   if (ALLOWED_BOTS.includes(prAuthor)) {
     core.info(`PR author ${prAuthor} is an allowed bot. Skipping.`);