2.2.55

## What's Changed
* [OPIK-8280] [QA] chore: let reconcile own the taxonomy specs lists instead of generated PRs by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/8200
* [OPIK-7791] [QA] Proposed e2e specs from the 2.2.48 → 2.2.49 release exploration by @CometActions in https://github.com/comet-ml/opik/pull/8127
* [OPIK-8262] [BE] fix: classify provider errors by status, not 4xx/5xx family by @thiagohora in https://github.com/comet-ml/opik/pull/8169
* [BE]: bill reasoning tokens at their own rate instead of the output rate by @Anuj7411 in https://github.com/comet-ml/opik/pull/7777
* [OPIK-8141] [BE] fix: record trace deletion events before the delete by @andrescrz in https://github.com/comet-ml/opik/pull/8201


**Full Changelog**: https://github.com/comet-ml/opik/compare/2.2.54...2.2.55