Bump antora from 3.2.0-rc.2 to 3.2.0-rc.3 in /docs (#672)

Bumps [antora](https://gitlab.com/antora/antora) from 3.2.0-rc.2 to 3.2.0-rc.3.
- [Changelog](https://gitlab.com/antora/antora/blob/main/CHANGELOG.adoc)
- [Commits](https://gitlab.com/antora/antora/compare/v3.2.0-rc.2...v3.2.0-rc.3)

---
updated-dependencies:
- dependency-name: antora
  dependency-version: 3.2.0-rc.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

docs/package.json

@@ -1,6 +1,6 @@
 {
   "dependencies": {
-    "antora": "3.2.0-rc.2",
+    "antora": "3.2.0-rc.3",
     "@antora/atlas-extension": "1.0.0-alpha.5",
     "@antora/collector-extension": "1.0.3",
     "@asciidoctor/tabs": "1.0.0-beta.6",