Hi,
you have requested a release PR from me. Here it is!
This is the changelog I created:

Changes

• method _pr_from_github_object differentiate closed and merged status
• allow usage of PRStatus.merged for github pull requests
• add get_latest_release(), create Releases class in test_github.py
• Simplify imports
• Split mocking and persistent_storage
• Fix github-app authentication
• Rename env-var for mocking and allow setting response file from RESPONSE_FILE env-var
• Use PersistentObjectStorage as a Singleton
• Split mocking and read_only from mocking
• Set persistent storage only via class
• Update mocking of GithubIntegration from PyGithub
• Improve mocking and add support for authentication as a github-app
• improve tests from previous commit
• add labeling github pull requests
• mistake fixed
• PRFlag changed back to PRStatus
• CommitStatus, PRStatus renamed to CommitFlag, PRFlag
• use zuul for realz now
• test changed
• method create release for github created
• add zuul config
• bump base image to F30
• add get_releses for Pagure
• unused functions removed
• add get_releases/get_release into abstract.py
• add who_can_marge_pr and who_can_close_issue
• delete obsolete comments
• fix review notes, add can_close_issue and can_merge_pr, remove who_can_close_issue and who_can_merge_pr
• fix mypy errors
• get project's owners and permissions of various users
• split test_get_tag_from_tag_name
• value of git_tag in github Release set
• link to GitTag from Release added
• collections.Hashable -> collections.abc.Hashable
• Make PersistentObjectStorage.init() backwards compatible
• in get_file_content catch only 404
• subprocess.run fix
• unify external command invocation by subprocess.run
• Add integration tests for factory and add more unit tests
• Add docstrings to factory and types to parsing
• Add get_project and get_service_class to global imports
• Add tests for parsing
• Add tests for factory
• Add eq for projects and services
• Save more attributes about parsed url
• [github] Be lazy with github_repo object from pygithub
• Fix str after rebase
• Add support for services-mapping update
• Import services in ogr/init.py to see it in the mapping
• Add method for creating projects from url
• Get project from url
• fix code format issues
• add tests, fix review notes
• creating/closing/commenting Pagure Issues
• Fix formating for str methods
• Changes requested to_str_method of classes
• Added instantiation-like syntax
• Added str method to classes
• Added str method to classes

You can change it by editing CHANGELOG.md in the root of this repository and pushing to 0.6.0-release branch before merging this PR.
I didn't find any files where __version__ is set.