fix(ci-info): use GITHUB_RUN_ID for build_number on GitHub Actions [SDK-6279]

The GitHub Actions branch of getCiInfo() set build_number from
GITHUB_RUN_NUMBER (the per-workflow sequential counter) while build_url
is built from GITHUB_RUN_ID (the globally-unique run id in the
actions/runs/<id> URL). The two referenced different identifiers for the
same run, so Observability's dashboard "Rerun" could not re-dispatch the
workflow (GitHub returned 404 -> obs-api "Invalid Params!" -> HTTP 500).

Align build_number with the run id already used by build_url. GitHub
Actions only; all other CI providers are unchanged.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: harshit-browserstack

bin/helpers/helper.js

@@ -274,7 +274,7 @@ exports.getCiInfo = () => {
       name: "GitHub Actions",
       build_url: `${env.GITHUB_SERVER_URL || 'https://github.com'}/${env.GITHUB_REPOSITORY}/actions/runs/${env.GITHUB_RUN_ID}`,
       job_name: env.GITHUB_WORKFLOW || env.GITHUB_JOB,
-      build_number: env.GITHUB_RUN_NUMBER
+      build_number: env.GITHUB_RUN_ID
     };
   }
   // Buildkite