Updated Jenkinsfile for ci.jenkins.io

[AniketNS]

Testing done

Submitter checklist

Beta Give feedback

1. Make sure you are opening from a topic/feature/bugfix branch (right side) and not your main branch!
2. Ensure that the pull request title represents the desired changelog entry
3. Please describe what you did
4. Link to relevant issues in GitHub or Jira
5. Link to relevant pull requests, esp. upstream and downstream changes
6. Ensure you have provided tests - that demonstrates feature works or fixes the issue

[kinow]

Thanks for the PR. I will hold merging it just until the build is fixed. It doesn't seem to be caused by this PR, but by something in the code or dependencies, I think, so it should be fixed in another PR and then I'll rebase this one. Thanks!