Add `release` to the project definition

[TristanCacqueray]

trafficstars

The goal is to enable filter based on release.

• Add time range for release for main branch
• Add target_branch name

[morucci]

The target branch regex is already supported in the definition.

[TristanCacqueray]

I meant release branch, or do you prefer we create a project per release? E.g. using a tuple (project name, release name).