v0.6.1

Changes

Refactor

Migrate from `error-stack` to `studiole-report` f495cf9

• Replace error-stack dependency with studiole-report 0.3.0
• Delete custom AttachKeyValueToReport and AttachPath extension traits now built into studiole-report
• Replace bail!() with return Err(Report::new(...))
• Convert single-arg .attach() calls to key-value pairs
• Replace downcast_ref in tests with current_context()
• Use report.render() for diagnostic output in AnyReport