3.0.0a5

Various fixes & improvements

• Add empty tags by default to transaction (#4683) by @sl0thentr0py
• Force creation of a new trace in continue_trace with empty headers (#4682) by @sl0thentr0py
• mypy (#3152) by @sl0thentr0py
• Add update_current_span to SDK 3 (#4679) by @sl0thentr0py
• feat(tracing): Add convenience function update_current_span. (#4673) by @antonpirker
• Update gen_ai.* and ai.* attributes (#4665) by @antonpirker
• Add update_data to Span. (#4666) by @antonpirker
• Fix plugins key codecov (#4655) by @sl0thentr0py