Bump @springio/asciidoctor-extensions in /docs (#1483)

Bumps [@springio/asciidoctor-extensions](https://github.com/spring-io/asciidoctor-extensions) from 1.0.0-alpha.16 to 1.0.0-alpha.17. - [Changelog](https://github.com/spring-io/asciidoctor-extensions/blob/main/CHANGELOG.adoc) - [Commits](spring-io/asciidoctor-extensions@v1.0.0-alpha.16...v1.0.0-alpha.17) --- updated-dependencies: - dependency-name: "@springio/asciidoctor-extensions" dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

docs/package.json

@@ -5,6 +5,6 @@
  "@antora/collector-extension": "1.0.1",
  "@asciidoctor/tabs": "1.0.0-beta.6",
  "@springio/antora-extensions": "1.14.4",
- "@springio/asciidoctor-extensions": "1.0.0-alpha.16"
+ "@springio/asciidoctor-extensions": "1.0.0-alpha.17"
  }
 }