[FAL-2259] koa.3 -> lilac.2

Created by: michaelbukachi

This PR updates Ocim to use opencraft-release/lilac.2 branch for new instances and also opencraft-release/lilac.2 branch for integration tests.

JIRA tickets:

• FAL-2259

Dependencies:

• https://github.com/open-craft/ansible-secrets/pull/312/files. Needs to be reverted

Testing instructions:

Ensure that PR passed all CI pipeline checks.

Reviewers

• @mtyaka