v2.6.1

What's Changed

• Fix/instrumentation crash when agent unavailable by @arjun-rajappa in #498
• chore: use otel api methods add_attributes and set_attribute by @arjun-rajappa in #499
• chore: release v 2.6.1 by @arjun-rajappa in #500

Full Changelog: v2.6.0...v2.6.1