build: bump version to 0.46.0

[wenytang-ms]

Summary

• Bump extension version from 0.45.0 to 0.46.0.
• Add the 0.46.0 changelog entries for user-facing changes since 0.45.0.
• Omit CI/workflow-only and internal dependency/telemetry-only changes from the changelog.

Validation

• npm run compile

[Copilot]

Pull request overview

This PR performs a patch release bump for the VS Code Java Test extension, updating the extension/package versions to 0.45.1 and documenting the user-facing changes since 0.45.0 in the changelog.

Changes:

• Bump extension version from 0.45.0 → 0.45.1 in package.json.
• Update package-lock.json to align the lockfile/package metadata with 0.45.1.
• Add a new 0.45.1 entry to CHANGELOG.md summarizing the perf/fix items included in this patch release.

Reviewed changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated no comments.

File	Description
package.json	Updates the published extension version to 0.45.1.
package-lock.json	Syncs lockfile version fields to 0.45.1 for consistency.
CHANGELOG.md	Adds the 0.45.1 release notes section with the relevant PR links.

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[Copilot]

Pull request overview

Copilot reviewed 2 out of 3 changed files in this pull request and generated no new comments.