Bump markwonVersion from 4.2.0 to 4.2.1

Bumps `markwonVersion` from 4.2.0 to 4.2.1.

Updates `core` from 4.2.0 to 4.2.1
- [Release notes](https://github.com/noties/Markwon/releases)
- [Changelog](https://github.com/noties/Markwon/blob/master/CHANGELOG.md)
- [Commits](https://github.com/noties/Markwon/compare/v4.2.0...v4.2.1)

Updates `ext-strikethrough` from 4.2.0 to 4.2.1
- [Release notes](https://github.com/noties/Markwon/releases)
- [Changelog](https://github.com/noties/Markwon/blob/master/CHANGELOG.md)
- [Commits](https://github.com/noties/Markwon/compare/v4.2.0...v4.2.1)

Updates `ext-tables` from 4.2.0 to 4.2.1
- [Release notes](https://github.com/noties/Markwon/releases)
- [Changelog](https://github.com/noties/Markwon/blob/master/CHANGELOG.md)
- [Commits](https://github.com/noties/Markwon/compare/v4.2.0...v4.2.1)

Updates `ext-tasklist` from 4.2.0 to 4.2.1
- [Release notes](https://github.com/noties/Markwon/releases)
- [Changelog](https://github.com/noties/Markwon/blob/master/CHANGELOG.md)
- [Commits](https://github.com/noties/Markwon/compare/v4.2.0...v4.2.1)

Updates `html` from 4.2.0 to 4.2.1
- [Release notes](https://github.com/noties/Markwon/releases)
- [Changelog](https://github.com/noties/Markwon/blob/master/CHANGELOG.md)
- [Commits](https://github.com/noties/Markwon/compare/v4.2.0...v4.2.1)

Updates `syntax-highlight` from 4.2.0 to 4.2.1
- [Release notes](https://github.com/noties/Markwon/releases)
- [Changelog](https://github.com/noties/Markwon/blob/master/CHANGELOG.md)
- [Commits](https://github.com/noties/Markwon/compare/v4.2.0...v4.2.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

build.gradle

@@ -61,7 +61,7 @@ configurations {
 ext {
     jacocoVersion = "0.8.2"
     daggerVersion = "2.26"
-    markwonVersion =  "4.2.0"
+    markwonVersion =  "4.2.1"
     prismVersion = "2.0.0"
     androidLibraryVersion = "master-SNAPSHOT"