Made Jenkinsfile release step match on pre-release tags too

[sgnn7]

Old version of the logic was only capable of handling vxx.yy.zz tag pattern. This change makes it so that we can also push pre-release semver tags too.

What does this PR do?

• Allows publishing from pre-release tags

What ticket does this PR close?

Connected to #199

Checklists

Change log

• [ ] The CHANGELOG has been updated, or
• [x] This PR does not include user-facing changes and doesn't require a CHANGELOG update

Test coverage

• [ ] This PR includes new unit and integration tests to go with the code changes, or
• [x] The changes in this PR do not require tests

Documentation

• [ ] Docs (e.g. READMEs) were updated in this PR, and/or there is a follow-on issue to update docs, or
• [x] This PR does not require updating any documentation