Refactor jenkins pipeline to support multi-platform artifacts

[gaiksaya]

Description

Signing verification works well on linux even for windows artifacts, however for mac artifacts that uses pkgutil, it is necessary to use underlying jenkins agent as macos (Darwin). The all in one standard release pipeline used one agent overall and had some defaults such as dockerAgents, etc which is not used by mac agent yet! Since it does not fit the standard release pipeline, creating its own jenkins pipeline.

Issues Resolved

related https://github.com/opensearch-project/opensearch-build/issues/3633

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

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[gaiksaya]

Closing in favor of https://github.com/opensearch-project/sql-odbc/pull/56