Igniter: fix regex to match semver better

[antirotor]

Fix

This should fix the case where multiple hyphens were used in staging version pre-release part.

foo-v3.14.6-nightly.2-x-y-x+staging were not matched properly and so the staging status of the version couldn't be determined.

This happened with --list-versions --use-staging and when staging version was not set in the Settings (so the latest compatible with the build should be used)

How to test

Create multiple versions in update repository like

foo-3.14.6+staging
goo-3.14.6-something.1+staging
hoo-3.14.6-something-else.1+staging.boo

then

openpype-console --list-versions --use-staging

should list them all

Note
This will be probably obsolete in 3.15 where staging logic will be dropped. See #3979