Bump antora from 3.2.0-alpha.12 to 3.2.0-rc.2 in /docs

[dependabot]

Bumps antora from 3.2.0-alpha.12 to 3.2.0-rc.2.

Changelog

Sourced from antora's changelog.

== 3.2.0-rc.2 (2026-06-20)

=== Added

• content-classifier: Add create argument as second argument to addFile method on content catalog for backwards compatibility; default to true

=== Changed

• content-classifier: Convert contents to Buffer if contents is string for file passed to createFile method on content catalog; only used if input file is not a Vinyl object (#1226)

== 3.2.0-rc.1 (2026-06-19)

=== Added

• content-classifier: Don't compute and assign pub property when adding file to content catalog if pub property is falsy (#1220)
• content-classifier: Add publishableFamilies setting on content catalog to allow custom family to be marked as publishable (#1219)
• content-classifier: Add createFile method to content catalog to create file without adding it to content catalog (#1221)
• content-classifier: Update ContentCatalog#getFiles to accept a predicate (i.e., filter function) to filter files (#1225)

=== Changed

• content-aggregator: Automatically set READABLE_STREAM environment variable on process to force use of Node.js APIs (#1215)
• content-classifier: Move internal second argument to ContentCatalog#addFile to transient data on src property
• content-classifier: Explicitly mark underscore file as private; follow-up to #1153
• content-classifier: Move underscore file check to classifyContent instead of createFile; follow-up to #1153
• asciidoc-loader: Skip Asciidoctor extension if it has non-compliant exports (assume it self registers) (#1222)
• asciidoc-loader: Cite specific reason why include is unresolved when target is an absolute file path or URL (#1223)
• navigation-builder: Skip entries in navigation tree that have empty content
• navigation-builder: Strip xref from navigation entry if mixed with other content (#1217)
• site-generator: Add hint to site generation completion message when log failure threshold is exceeded (#1216)
• cli: Change exit code to 2 when log failure threshold is exceeded (#1216)
• Set Node.js 20 as minimum required version of Node.js

=== Fixed

• logger: Add support for destination object that's an instance of EventEmitter for logger when format is pretty
• asciidoc-loader: Decode resource reference using decodeURIComponent if it contains % (#484)

Commits

• 4b5396b release 3.2.0-rc.2
• 6c17748 merge !1139
• 255157f resolves #1226 convert contents to Buffer if contents is string for file pass...
• e4000ba add create argument as second argument to addFile for backwards compatibility
• 3eb2bf2 add note about stability of 3.2.0 release [skip ci]
• 68f0bdd prepare branch for development [skip ci]
• deba82d release 3.2.0-rc.1
• 7db0659 upgrade to biome 2.5
• 315fc4d replace use of String#slice with String#substring
• 53d0c44 replace use of deprecated String#substr with String#substring
• Additional commits viewable in compare view