Staging Action fails on version mismatch between staging and dev

[sjpark608]

After resolving #428 staging action failed while performing cherry-picking job to bump the dev branch version number. The log shows a merge conflict error on bump version and setup file. This is most likely due to the version number discrepancy between dev and staging branches. While fixing #428, staging action bumped rc version three times to 1.2.20 from 1.2.17.

Staging workflow needs to be improved so that when it fails it reverts the bumped version number