CI/CD: Sometimes release specific workflows are triggering on the main branches

[denis-tingaikin]

Description

Have a look at release workflow runs in cmd repos, for example:

https://github.com/networkservicemesh/cmd-nsc/actions/workflows/release.yml
https://github.com/networkservicemesh/cmd-nse-vl3-vpp/actions/workflows/release.yml

Release workflows are skipped for the main branches, and that's fine, but they also can be just ignored by CI. by release prefix as it is done in the deployments.-k8s repo: https://github.com/networkservicemesh/deployments-k8s/actions/workflows/release.yaml (note: release workflow is running only on release branches)

[denis-tingaikin]

integration testing repositories also have this problem

[denis-tingaikin]

Seems like done. We'll reopen the ticket if face any problems on CI.