fix(deps): update dependency @opentelemetry/api to v1.8.0

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@opentelemetry/api (source)	1.7.0 -> 1.8.0

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Release Notes

open-telemetry/opentelemetry-js (@​opentelemetry/api)

### [`v1.8.0`](https://togithub.com/open-telemetry/opentelemetry-js/blob/HEAD/CHANGELOG.md#180) [Compare Source](https://togithub.com/open-telemetry/opentelemetry-js/compare/v1.7.0...v1.8.0) - `@opentelemetry/sdk-metrics` has been promoted to stable - `@opentelemetry/api-metrics` has been merged into `@opentelemetry/api` and deprecated ##### :boom: Breaking Change - feat(api): merge api-metrics into api [#​3374](https://togithub.com/open-telemetry/opentelemetry-js/pull/3374) [@​legendecas](https://togithub.com/legendecas) ##### :rocket: (Enhancement) - feat(sdk-trace): re-export sdk-trace-base in sdk-trace-node and web [#​3319](https://togithub.com/open-telemetry/opentelemetry-js/pull/3319) [@​legendecas](https://togithub.com/legendecas) - feat: enable tree shaking [#​3329](https://togithub.com/open-telemetry/opentelemetry-js/pull/3329) [@​pkanal](https://togithub.com/pkanal) ##### :bug: (Bug Fix) - fix(sdk-trace): enforce consistent span durations [#​3327](https://togithub.com/open-telemetry/opentelemetry-js/pull/3327) [@​dyladan](https://togithub.com/dyladan) - fix(resources): fix EnvDetector throwing errors when attribute values contain spaces [#​3295](https://togithub.com/open-telemetry/opentelemetry-js/issues/3295) - fix(trace): fix an issue which caused negative span durations in web based spans [#​3359](https://togithub.com/open-telemetry/opentelemetry-js/pull/3359) [@​dyladan](https://togithub.com/dyladan) - fix(resources): strict OTEL_RESOURCE_ATTRIBUTES baggage octet decoding [#​3341](https://togithub.com/open-telemetry/opentelemetry-js/pull/3341) [@​legendecas](https://togithub.com/legendecas) ##### :books: (Refine Doc) - doc: Added Metrics documentation [#​3360](https://togithub.com/open-telemetry/opentelemetry-js/pull/3360) [@​weyert](https://togithub.com/weyert) - docs(api): fix counter negative value wording [#​3396](https://togithub.com/open-telemetry/opentelemetry-js/pull/3396) [@​legendecas](https://togithub.com/legendecas) ##### :house: (Internal) - ci: run browser tests without circle [#​3328](https://togithub.com/open-telemetry/opentelemetry-js/pull/3328) [@​dyladan](https://togithub.com/dyladan)

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