v25.6.1

What's Changed

• chore: Namespace all extension functions, allow aliases in default schema by @scsmithr in #3901
• chore: Update parquet format by @scsmithr in #3902
• chore: Add iceberg docs by @scsmithr in #3903
• Update reference documentation titles to use sentence casing by @devin-ai-integration in #3904
• docs: Update CSV and Parquet extension docs by @scsmithr in #3905

Full Changelog: v25.6.0...v25.6.1