config: compat with new VCS integration

[palkerecsenyi]

Closes inveniosoftware/invenio-vcs#2

---

• We are updating invenio-github to be a generic package supporting many VCS providers, not just GitHub. As such, it will be renamed (currently to invenio-vcs).

• The RDMGitHubRelease class has been renamed and restructured, so this must be reflected in config.py for continued functionality. No other changes are needed to this repository at the moment.

• See feat(vcs): support for new VCS integration (backend) invenio-rdm-records#2284 and feat(vcs): support for new VCS integration (frontend) invenio-rdm-records#2283

[palkerecsenyi]

Tests are currently failing due to a dependency issue which we need to fix.

We are importing and referencing RDMVCSRelease in the config. Currently this is failing as the invenio-vcs has not been published. However, we now want this to be an optional dependency rather than a default one (as it currently is in invenio-rdm-records, with the plugin being enabled through the GITHUB_INTEGRATION_ENABLED flag instead of the mere presence of the dependency). So we need to find a way to only apply the release class override if the user has manually installed the dependency and not to crash otherwise.

[carlinmack]

LGTM, from Carlin and Maira

[carlinmack]

maybe you can squash? I feel like this is 1 commit's worth of stuff in the end

[palkerecsenyi]

@carlinmack Yes my aim is definitely to squash into one, same for inveniosoftware/invenio-rdm-records#2128. We're currently merging the PRs in Invenio VCS and then I will squash these 2 PRs since they will probably still have quite a few changes before we start reviewing them.