Bump markwonVersion from 4.5.0 to 4.5.1

Bumps `markwonVersion` from 4.5.0 to 4.5.1.

Updates `core` from 4.5.0 to 4.5.1
- [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/v4.5.0...v4.5.1)

Updates `ext-strikethrough` from 4.5.0 to 4.5.1
- [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/v4.5.0...v4.5.1)

Updates `ext-tables` from 4.5.0 to 4.5.1
- [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/v4.5.0...v4.5.1)

Updates `ext-tasklist` from 4.5.0 to 4.5.1
- [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/v4.5.0...v4.5.1)

Updates `html` from 4.5.0 to 4.5.1
- [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/v4.5.0...v4.5.1)

Updates `syntax-highlight` from 4.5.0 to 4.5.1
- [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/v4.5.0...v4.5.1

)

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