chore(deps): upgrade octokit to v5 and @octokit/auth-app to v8 (#12472)

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>

plugins/github/server/api/github.ts

@@ -97,7 +97,6 @@ router.get(
             id: installationId!,
             account: {
               id: installation.account?.id,
-              // @ts-expect-error Property 'login' does not exist on type
               name: installation.account?.login,
               avatarUrl: installation.account?.avatar_url,
             },