Bump convict, @antora/cli and @antora/site-generator-default

Bumps [convict](https://github.com/mozilla/node-convict) to 6.2.4 and updates ancestor dependencies [convict](https://github.com/mozilla/node-convict), [@antora/cli](https://gitlab.com/antora/antora) and [@antora/site-generator-default](https://gitlab.com/antora/antora). These dependencies need to be updated together.


Updates `convict` from 6.0.0 to 6.2.4
- [Release notes](https://github.com/mozilla/node-convict/releases)
- [Changelog](https://github.com/mozilla/node-convict/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mozilla/node-convict/commits)

Updates `@antora/cli` from 2.3.3 to 3.1.2
- [Release notes](https://gitlab.com/antora/antora/tags)
- [Changelog](https://gitlab.com/antora/antora/blob/main/CHANGELOG.adoc)
- [Commits](https://gitlab.com/antora/antora/compare/v2.3.3...v3.1.2)

Updates `@antora/site-generator-default` from 2.3.3 to 3.1.2
- [Release notes](https://gitlab.com/antora/antora/tags)
- [Changelog](https://gitlab.com/antora/antora/blob/main/CHANGELOG.adoc)
- [Commits](https://gitlab.com/antora/antora/compare/v2.3.3...v3.1.2)

---
updated-dependencies:
- dependency-name: convict
  dependency-type: indirect
- dependency-name: "@antora/cli"
  dependency-type: direct:development
- dependency-name: "@antora/site-generator-default"
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>
2 files changed