chore(deps): update dependency pymdown-extensions to v9.9

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
pymdown-extensions	==9.8 -> ==9.9

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Release Notes

facelessuser/pymdown-extensions

### [`v9.9`](https://togithub.com/facelessuser/pymdown-extensions/releases/tag/9.9) [Compare Source](https://togithub.com/facelessuser/pymdown-extensions/compare/9.8...9.9) #### 9.9 - **ENHANCE**: BetterEm: Further improvements to strong/emphasis handling: - Ensure that one or more consecutive `*` or `_` surrounded by whitespace are not considered as a token. - **ENHANCE**: Caret: Apply recent BetterEm improvements to Caret: - Fix case where `^^` nested between `^` would be handled in an unexpected way. - Ensure that one or more consecutive `^` surrounded by whitespace are not considered as a token. - **ENHANCE**: Tilde: Apply recent BetterEm improvements to Tilde: - Fix case where `~~` nested between `~` would be handled in an unexpected way. - Ensure that one or more consecutive `~` surrounded by whitespace are not considered a token. - **ENHANCE**: Mark: Apply recent BetterEm improvements to Mark: - Ensure that one or more consecutive `=` surrounded by whitespace are not considered a token.

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Configuration

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Unit Test Results

366 tests  ±0   366 :heavy_check_mark: ±0   27s :stopwatch: -6s 154 suites ±0       0 :zzz: ±0  154 files   ±0       0 :x: ±0 

Results for commit bd8a4110. ± Comparison against base commit 614c22ac.

:recycle: This comment has been updated with latest results.