Add check for not existing release version

[falfaroc]

Description

An issue was identified where, if the repository was cutting it's first initial release, the release creator would fail due to the retrieval of releases returning null. This causes issues with new repositories and forces the developers to manually cut a release which could be error prone.

Fix: Check the response of the curl command and if it returns that there is no release, set the version to be v0.0.0. This allows the rest of the action to work as expected since it will automatically increment the version.

Issues

List the issues impacted by this PR:

Issue ID
https://github.com/dell/csm/issues/1490

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Please also list any relevant details for your test configuration

• Tested to ensure that initial releases work in a similar manner as other every other release.