ci(fix): docker images incorrectly tagged with v

[strophy]

Issue being fixed or feature implemented

Docker images built with the new workflow dispatch automation were incorrectly tagged with a v prefix

What was done?

• Specify regex capturing group when parsing tag value

How Has This Been Tested?

Works with other tags ;)

Breaking Changes

None

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated relevant unit/integration/functional/e2e tests
• I have made corresponding changes to the documentation

For repository code-owners and collaborators only

• I have assigned this pull request to a milestone

[shumkov]

👍