Update jenkins file to use updated docker image

[gaiksaya]

Description

We recently upgraded the python version in the build repo. Due to this any code using build repo code fails if right python version is not used. Signing artifacts uses the build repo code hence updating the image to most recent one.

Issues Resolved

opensearch-project/opensearch-build#3712

Check List

• New functionality includes testing.
  • All tests pass, including unit test, integration test and doctest
• New functionality has been documented.
  • New functionality has javadoc added
  • New functionality has user manual doc added
• Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[joshuali925]

https://github.com/opensearch-project/opensearch-build/blob/main/DEVELOPER_GUIDE.md#install-prerequisites
this still says install 3.7, does it mean the instructions are outdated?

also is python 3.9.7 the only supported python version, or 3.9.x are ok? i see opensearchstaging/ci-runner:release-centos7-clients-v4 uses 3.9.7

[gaiksaya]

https://github.com/opensearch-project/opensearch-build/blob/main/DEVELOPER_GUIDE.md#install-prerequisites this still says install 3.7, does it mean the instructions are outdated?

also is python 3.9.7 the only supported python version, or 3.9.x are ok? i see opensearchstaging/ci-runner:release-centos7-clients-v4 uses 3.9.7

Yes @peterzhuamazon is working on updating the developer guide. Any 3.9.x should work. However since it clones build repo and has a piplock file it bootstraps with the same which is fixated to 3.9.7