chore: release v2.6.0

[seemk]

• Add missing telemetry.sdk.version to profiling payloads. #854
• Upgrade to OpenTelemetry 1.18.1 / 0.45.1. #852
• Add Linux ARM64 prebuilt binaries. #850

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (aef041e) 86.22% compared to head (9904c61) 86.22%. Report is 2 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #855 +/- ## ======================================= Coverage 86.22% 86.22% ======================================= Files 19 19 Lines 668 668 Branches 153 153 ======================================= Hits 576 576 Misses 92 92 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.