feat(core): Deprecate Span.origin in favor of sentry.origin attribute

[Lms24]

This PR deprecates the Span.origin field on the class and the interface. It will be replaced in v8 by the semantic sentry.op attribute .

For now, I didn't yet deprecate SpanContext.origin but I think we could do it quite easily by just setting the origin in attributes when starting spans. Happy to tackle in a follow-up PR if we want to do this.

ref #10184

[github-actions]

size-limit report 📦

Path	Size
@sentry/browser (incl. Tracing, Replay, Feedback) - Webpack (gzipped)	77.69 KB (+0.04% 🔺)
@sentry/browser (incl. Tracing, Replay) - Webpack (gzipped)	68.95 KB (+0.03% 🔺)
@sentry/browser (incl. Tracing, Replay with Canvas) - Webpack (gzipped)	72.84 KB (+0.04% 🔺)
@sentry/browser (incl. Tracing, Replay) - Webpack with treeshaking flags (gzipped)	62.58 KB (+0.04% 🔺)
@sentry/browser (incl. Tracing) - Webpack (gzipped)	32.96 KB (+0.07% 🔺)
@sentry/browser (incl. Feedback) - Webpack (gzipped)	31.18 KB (0%)
@sentry/browser (incl. sendFeedback) - Webpack (gzipped)	31.19 KB (0%)
@sentry/browser - Webpack (gzipped)	22.53 KB (0%)
@sentry/browser (incl. Tracing, Replay, Feedback) - ES6 CDN Bundle (gzipped)	75.26 KB (+0.03% 🔺)
@sentry/browser (incl. Tracing, Replay) - ES6 CDN Bundle (gzipped)	66.9 KB (+0.06% 🔺)
@sentry/browser (incl. Tracing) - ES6 CDN Bundle (gzipped)	32.73 KB (+0.06% 🔺)
@sentry/browser - ES6 CDN Bundle (gzipped)	24.25 KB (0%)
@sentry/browser (incl. Tracing, Replay) - ES6 CDN Bundle (minified & uncompressed)	210.77 KB (+0.06% 🔺)
@sentry/browser (incl. Tracing) - ES6 CDN Bundle (minified & uncompressed)	98.75 KB (+0.13% 🔺)
@sentry/browser - ES6 CDN Bundle (minified & uncompressed)	72.58 KB (0%)
@sentry/browser (incl. Tracing) - ES5 CDN Bundle (gzipped)	35.81 KB (+0.11% 🔺)
@sentry/react (incl. Tracing, Replay) - Webpack (gzipped)	69.35 KB (+0.03% 🔺)
@sentry/react - Webpack (gzipped)	22.58 KB (0%)
@sentry/nextjs Client (incl. Tracing, Replay) - Webpack (gzipped)	85.97 KB (+0.03% 🔺)
@sentry/nextjs Client - Webpack (gzipped)	50.25 KB (+0.06% 🔺)
@sentry-internal/feedback - Webpack (gzipped)	17.14 KB (0%)

[mydea]

this makes sense, and probably I agree we can also remove it from StartSpanOptions!

[Lms24]

heads-up (cc @mydea since you already reviewed): Similarly to sentry.op, sentry.origin is now also added to the serialized event payload in span data.