fix(otel): Set otel span on scope

[AbhiPrasad]

This allows us to link errors to transactions via contexts.trace

[github-actions]

size-limit report 📦

Path	Size
@sentry/browser - ES5 CDN Bundle (gzipped + minified)	19.57 KB (-0.03% 🔽)
@sentry/browser - ES5 CDN Bundle (minified)	60.59 KB (0%)
@sentry/browser - ES6 CDN Bundle (gzipped + minified)	18.36 KB (+0.01% 🔺)
@sentry/browser - ES6 CDN Bundle (minified)	54.15 KB (0%)
@sentry/browser - Webpack (gzipped + minified)	20.12 KB (0%)
@sentry/browser - Webpack (minified)	65.75 KB (0%)
@sentry/react - Webpack (gzipped + minified)	20.14 KB (0%)
@sentry/nextjs Client - Webpack (gzipped + minified)	45.99 KB (0%)
@sentry/browser + @sentry/tracing - ES5 CDN Bundle (gzipped + minified)	26.44 KB (-0.02% 🔽)
@sentry/browser + @sentry/tracing - ES6 CDN Bundle (gzipped + minified)	24.87 KB (+0.02% 🔺)
@sentry/replay index.js	62 KB (0%)
@sentry/replay - Webpack (gzipped + minified)	62 KB (0%)
@sentry/replay - Webpack (minified)	199.35 KB (0%)

[AbhiPrasad]

After discussion with the team, we've decided to use event processor for this to avoid using scope.

Here's how this will work. In the event processor we'll

1. Check for current otel span
2. Grab it's trace info
3. Add it to error events the same way we do in event processing