chore(deps): update plugin org.jetbrains.dokka to v1.6.21

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.jetbrains.dokka	1.6.10 -> 1.6.21

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Release Notes

Kotlin/dokka

v1.6.21

This is a bugfix release that mostly enables building documentation for multiplatform projects that utilize .klib libraries.

Changes

• Support Kotlin 1.6.21
• Update jsoup dependency to avoid CVE-2021-37714 (#​2448)

Bugfixes

• Support KLIB libraries for common platform, previously led to ERROR CLASS instead of references in documentation (#​2441)
• Fixed a maven plugin build problem related to coroutines which only occurred in multi-module builds (#​2461)

v1.6.20

Features

• Introduce documentedVisibilities setting that allows including/excluding any visibility modifier in documentation. This is a more flexible replacement for includeNonPublic, which has now been deprecated (https://github.com/Kotlin/dokka/pull/2270)
• Make HTML pages customizable through FreeMarker HTML templates (https://github.com/Kotlin/dokka/pull/2374)
• Add global settings to JSON dokka CLI input (https://github.com/Kotlin/dokka/pull/2292), thanks to @​BarkingBad!

HTML format changes

• Add vertical alignment (wrapping) of signatures when 3 and more parameters are present (https://github.com/Kotlin/dokka/pull/2309)
• Enhance primary constructor signature, display val/var keywords and default values (https://github.com/Kotlin/dokka/pull/2313)
• Add a level of indentation to childless items in navigation tree (https://github.com/Kotlin/dokka/pull/2291)
• Add horizontal margin to breadcrumbs delimiter (https://github.com/Kotlin/dokka/pull/2285)
• Fixed various CSS rendering issues (https://github.com/Kotlin/dokka/pull/2284, https://github.com/Kotlin/dokka/pull/2389)

Bugfixes

• Fixed OutOfMemoryError: Metaspace-related issues for the majority of cases (https://github.com/Kotlin/dokka/pull/2216)
• Fixed classpath issues for HMPP libraries (https://github.com/Kotlin/dokka/pull/2431)
• Using @ symbol within code blocks in .md files doesn't lead to cropped documents anymore (https://github.com/Kotlin/dokka/pull/2418)
• Fixed incorrect placement of HTML head tags, which led to missing favicon in multi-module projects (https://github.com/Kotlin/dokka/pull/2365)
• Fixed resolution of ultralight methods that led to flaky signature generation (https://github.com/Kotlin/dokka/pull/2400)
• Coroutines dispatchers are now shut down after each module pass to avoid resource leaks (https://github.com/Kotlin/dokka/pull/2325)
• Suppressed property setters are now excluded from documentation (https://github.com/Kotlin/dokka/pull/2220)
• Suppressing extensions doesn't fail builds anymore (https://github.com/Kotlin/dokka/pull/2348), thanks to @​BarkingBad!
• Fixed java getter / setter name generation for kotlin-java interop, now isBoolean instead of getBoolean (https://github.com/Kotlin/dokka/pull/2356), thanks to @​CharlesG-Branch!
• Fixed MathJax plugin, previously completely broken (https://github.com/Kotlin/dokka/pull/2342), thanks to @​wyskoj!
• Fixed Input/Output streams to minimize resource leaks (https://github.com/Kotlin/dokka/pull/2312, https://github.com/Kotlin/dokka/pull/2319)

Plugin API Changes

• Add an extension point for rendering custom documentation tags (https://github.com/Kotlin/dokka/pull/2343)
• Add an extension point for an external documentable provider (https://github.com/Kotlin/dokka/pull/2307), thanks to @​Kordyjan!
• Add filtering stategies extension point and fix constructors in Kotlin-as-Java (https://github.com/Kotlin/dokka/pull/2277), thanks to @​BarkingBad!
• Expose Kotlin-as-Java methods that could be used not only as part of transformers (https://github.com/Kotlin/dokka/pull/2351), thanks to @​BarkingBad!
• Refactor Ancestry Graphs (https://github.com/Kotlin/dokka/pull/2326), thanks to @​BarkingBad!
• Fixed resolving of DRIs for Enum Entries (https://github.com/Kotlin/dokka/pull/2305), thanks to @​BarkingBad!

General Improvements

• Collect annotations from package-info.java (https://github.com/Kotlin/dokka/pull/2331), thanks to @​ember-rose!
• Add support for header tags (<h1> / <h2> / <h3>) in Javadoc (https://github.com/Kotlin/dokka/pull/2345), thanks to @​asfalcone!
• Add an option to merge implicit expect-actual declarations, enables merging of pages for related declarations which are not connected via expect-actual keywords (https://github.com/Kotlin/dokka/pull/2316)
• Add a note about using Dokka in a precompiled script plugin (https://github.com/Kotlin/dokka/pull/2303), thanks to @​chkpnt!
• Fixed wrong Groovy DSL example (https://github.com/Kotlin/dokka/pull/2302), thanks to @​chkpnt!
• Various code cleanups (https://github.com/Kotlin/dokka/pull/2165, https://github.com/Kotlin/dokka/pull/2360, https://github.com/Kotlin/dokka/pull/2364, https://github.com/Kotlin/dokka/pull/2385), thanks to @​Goooler!

Known issues

• Kotlin Multiplatform projects that use .klib libraries may experience problems. There will be a separate 1.6.21 release that will address this issue shortly.

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