chore(deps): update dependency pymdown-extensions to >=10.15,<10.16

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
pymdown-extensions	>=10.14,<10.15 -> >=10.15,<10.16

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Release Notes

facelessuser/pymdown-extensions (pymdown-extensions)

v10.15

Compare Source

10.15.0

• NEW: SuperFences: Add relaxed_headers option which can tolerate bad content in the fenced code header. When
  enabled, code blocks with bad content in the header will likely still convert into code blocks, often respecting
  the specified language.
• NEW: Add type hints to the Blocks interface and a few additional files.
• FIX: Blocks: Fix some corner cases of nested blocks with lists.
• FIX: Tab and Tabbed: Fix a case where tabs could fail if combine_header_slug was enabled and there was no
  header.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (718d7c9) to head (5f8172a).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #405   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
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  Files            7         7           
  Lines          335       335           
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  Hits           335       335           

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