Bump @springio/antora-extensions from 1.14.4 to 1.14.6 in /docs

Bumps [@springio/antora-extensions](https://github.com/spring-io/antora-extensions) from 1.14.4 to 1.14.6.
- [Changelog](https://github.com/spring-io/antora-extensions/blob/main/CHANGELOG.adoc)
- [Commits](spring-io/antora-extensions@v1.14.4...v1.14.6)

---
updated-dependencies:
- dependency-name: "@springio/antora-extensions"
  dependency-version: 1.14.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

docs/package.json

@@ -4,7 +4,7 @@
 		"@antora/atlas-extension": "1.0.0-alpha.2",
 		"@antora/collector-extension": "1.0.1",
 		"@asciidoctor/tabs": "1.0.0-beta.6",
-		"@springio/antora-extensions": "1.14.6",
+		"@springio/antora-extensions": "1.14.7",
 		"@springio/asciidoctor-extensions": "1.0.0-alpha.17"
 	}
 }