Release Capact 0.7.0

[pkosiec]

Description

• Create new GitHub release according to the https://capact.io/community/release doc.
  • Make sure we use just the images that are built on the main/release branches. Do not use PR-XXX tags
  • Write release notes on top of the changelog (different section) and make sure they are approved by reviewers
• Share the news on social media
• Take a final look at our Mattermost and RocketChat manifests and verify if they run properly on a fresh VM

Reason

We're about to finish our next milestone 🚀