Original test accidentally created a second primary email by trying to
modify the PK of an existing Email. That led to a stochastic apparently
data-dependent failure that depended on which address was returned by
`first()`.

* test: create RfcAuthors in RfcFactory

* test: update test to check authors

* fix: use RfcAuthor in bibtex (w/titlepage_name)

* fix: trailing / on bibtex url

* fix: update URL in bibtex warning for legacy RFCs

* test: fix failing tests

Remove a case that tests fallback from RfcAuthor to DocumentAuthor
since we now always have RfcAuthors. Remove RfcAuthor records when
deleting Persons they refer to, since we don't allow cascade on
this model.

Bumps [codecov/codecov-action](https://github.com/codecov/codecov-action) from 6 to 7.
- [Release notes](https://github.com/codecov/codecov-action/releases)
- [Changelog](https://github.com/codecov/codecov-action/blob/main/CHANGELOG.md)
- [Commits](codecov/codecov-action@v6...v7)

---
updated-dependencies:
- dependency-name: codecov/codecov-action
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

…tools#10842)

Bumps [actions/dependency-review-action](https://github.com/actions/dependency-review-action) from 4 to 5.
- [Release notes](https://github.com/actions/dependency-review-action/releases)
- [Commits](actions/dependency-review-action@v4...v5)

---
updated-dependencies:
- dependency-name: actions/dependency-review-action
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

…-tools#10762)

Updates the requirements on [pydyf](https://github.com/CourtBouillon/pydyf) to permit the latest version.
- [Release notes](https://github.com/CourtBouillon/pydyf/releases)
- [Changelog](https://github.com/CourtBouillon/pydyf/blob/main/docs/changelog.rst)
- [Commits](CourtBouillon/pydyf@v0.11.0...v0.12.1)

---
updated-dependencies:
- dependency-name: pydyf
  dependency-version: 0.12.1
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

…ols#10760)

Updates the requirements on [lxml](https://github.com/lxml/lxml) to permit the latest version.
- [Release notes](https://github.com/lxml/lxml/releases)
- [Changelog](https://github.com/lxml/lxml/blob/master/CHANGES.txt)
- [Commits](lxml/lxml@lxml-6.0.0...lxml-6.1.0)

---
updated-dependencies:
- dependency-name: lxml
  dependency-version: 6.1.0
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>