Update Node.js dependencies and prepare typespec-java 0.44.6 patch release (#3329)

* Update package versions and patch release metadata

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Co-authored-by: weidongxu-microsoft <53292327+weidongxu-microsoft@users.noreply.github.com>

* Update typespec-extension lockfile after dependency refresh

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* Update core submodule to latest upstream main (ac0335c90)

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---------

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Co-authored-by: weidongxu-microsoft <53292327+weidongxu-microsoft@users.noreply.github.com>

Author: Copilot

core

@@ -1,5 +1,11 @@
 # Release History
 
+## 0.44.6 (2026-04-23)
+
+Compatible with compiler 1.11.0.
+
+- Updated package dependencies to the latest versions.
+
 ## 0.44.5 (2026-04-16)
 
 Compatible with compiler 1.11.0.