Description

Update semantic conventions for Gen-AI spans

refs:

1. https://opentelemetry.io/docs/specs/semconv/registry/attributes/gen-ai/
2. https://opentelemetry.io/docs/specs/semconv/gen-ai/gen-ai-agent-spans/#invoke-agent-span
3. https://opentelemetry.io/docs/specs/semconv/gen-ai/gen-ai-spans/#execute-tool-span
4. https://opentelemetry.io/docs/specs/semconv/gen-ai/gen-ai-events/#event-gen_aitoolmessage

Related Issues

https://github.com/strands-agents/private-sdk-python-staging/issues/77

Documentation PR

Will update the doc

Type of Change

Other (please describe):
chore: semantic conventions

Testing

How have you tested the change? Verify that the changes do not break functionality or introduce warnings in consuming repositories: agents-docs, agents-tools, agents-cli

• I ran hatch run prepare
• I ran manual tests and view the spans

Checklist

• I have read the CONTRIBUTING document
• I have added any necessary tests that prove my fix is effective or my feature works
• [] I have updated the documentation accordingly
• [] I have added an appropriate example to the documentation to outline the feature, or no new docs are needed
• My changes generate no new warnings
• Any dependent changes have been merged and published

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.