Update to Volar 2.3

[johnsoncodehk]

Initial checklist

• I read the support docs
• I read the contributing guide
• I agree to follow the code of conduct
• I searched issues and couldn’t find anything (or linked relevant results below)
• If applicable, I’ve added docs and tests

Description of changes

Update to Volar 2.3.

[changeset-bot]

🦋 Changeset detected

Latest commit: ee0b3e0

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 4 packages

Name	Type
@mdx-js/typescript-plugin	Patch
@mdx-js/language-service	Patch
@mdx-js/language-server	Patch
vscode-mdx	Patch

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

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Additional details and impacted files

@@           Coverage Diff           @@
##             main     #446   +/-   ##
=======================================
  Coverage        ?   91.49%           
=======================================
  Files           ?       10           
  Lines           ?     1611           
  Branches        ?        0           
=======================================
  Hits            ?     1474           
  Misses          ?      137           
  Partials        ?        0           

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