chore(deps): update dependency rich to >=14.3.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
rich	>=14.2.0 → >=14.3.1

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[claude]

PR Review

Summary: This dependency update looks safe to merge.

Analysis:

• Updates rich from >=14.2.0 to >=14.3.0
• Only used in examples/anthropic_comparison/results_exporter.py for console output (Console, Table, Panel)
• Rich 14.3.0 changes primarily affect Markdown rendering and specialized features not used in this codebase

Changes in rich 14.3.0:

• Fixes for IPython integration, Progress display, column padding, soft_wrap behavior
• Markdown header/table/rule style changes (not used here)
• New multi-codepoint glyph support

No issues found:

• No breaking changes affecting current usage
• Only basic rich features used (Console, Table, Panel)
• Dependency scope limited to optional examples group
• All changes are bug fixes and enhancements

Recommendation: Approve and merge.