ref(core): Simplify linkedErrors mechanism logic

[Lms24]

Noticed this was more complicated than necessary. Also setting a specific mechanism type but this is unlikely to actually surface if our event capturing logic works correctly.

[github-actions]

size-limit report 📦

Path	Size	% Change	Change
@sentry/browser	24.17 kB	-0.01%	-1 B 🔽
@sentry/browser - with treeshaking flags	22.75 kB	-0.02%	-3 B 🔽
@sentry/browser (incl. Tracing)	40.16 kB	-0.02%	-5 B 🔽
@sentry/browser (incl. Tracing, Replay)	78.5 kB	-0.02%	-12 B 🔽
@sentry/browser (incl. Tracing, Replay) - with treeshaking flags	68.27 kB	-0.02%	-8 B 🔽
@sentry/browser (incl. Tracing, Replay with Canvas)	83.19 kB	-0.02%	-13 B 🔽
@sentry/browser (incl. Tracing, Replay, Feedback)	95.4 kB	-0.01%	-6 B 🔽
@sentry/browser (incl. Feedback)	40.9 kB	-0.01%	-4 B 🔽
@sentry/browser (incl. sendFeedback)	28.82 kB	-0.02%	-3 B 🔽
@sentry/browser (incl. FeedbackAsync)	33.76 kB	-0.02%	-5 B 🔽
@sentry/react	25.89 kB	-0.01%	-1 B 🔽
@sentry/react (incl. Tracing)	42.13 kB	-0.01%	-3 B 🔽
@sentry/vue	28.66 kB	-0.02%	-3 B 🔽
@sentry/vue (incl. Tracing)	41.97 kB	-0.03%	-9 B 🔽
@sentry/svelte	24.2 kB	+0.01%	+2 B 🔺
CDN Bundle	25.76 kB	-0.02%	-3 B 🔽
CDN Bundle (incl. Tracing)	40.04 kB	-0.02%	-5 B 🔽
CDN Bundle (incl. Tracing, Replay)	76.32 kB	-0.01%	-4 B 🔽
CDN Bundle (incl. Tracing, Replay, Feedback)	81.79 kB	-0.01%	-7 B 🔽
CDN Bundle - uncompressed	75.28 kB	-0.08%	-53 B 🔽
CDN Bundle (incl. Tracing) - uncompressed	118.51 kB	-0.05%	-53 B 🔽
CDN Bundle (incl. Tracing, Replay) - uncompressed	233.6 kB	-0.03%	-53 B 🔽
CDN Bundle (incl. Tracing, Replay, Feedback) - uncompressed	246.37 kB	-0.03%	-53 B 🔽
@sentry/nextjs (client)	44.15 kB	-0.05%	-18 B 🔽
@sentry/sveltekit (client)	40.6 kB	-0.01%	-4 B 🔽
@sentry/node-core	49.84 kB	+0.03%	+11 B 🔺
@sentry/node	151.13 kB	+0.01%	+5 B 🔺
@sentry/node - without tracing	91.73 kB	+0.01%	+2 B 🔺
@sentry/aws-serverless	105.18 kB	+0.01%	+6 B 🔺

View base workflow run

[github-actions]

node-overhead report 🧳

Note: This is a synthetic benchmark with a minimal express app and does not necessarily reflect the real-world performance impact in an application.
⚠️ Warning: Base artifact is not the latest one, because the latest workflow run is not done yet. This may lead to incorrect results. Try to re-run all tests to get up to date results.

Scenario	Requests/s	% of Baseline	Prev. Requests/s	Change %
GET Baseline	9,232	-	9,388	-2%
GET With Sentry	1,310	14%	1,300	+1%
GET With Sentry (error only)	6,091	66%	6,248	-3%
POST Baseline	1,219	-	1,215	+0%
POST With Sentry	496	41%	535	-7%
POST With Sentry (error only)	1,045	86%	1,072	-3%
MYSQL Baseline	3,401	-	3,421	-1%
MYSQL With Sentry	419	12%	431	-3%
MYSQL With Sentry (error only)	2,768	81%	2,786	-1%

View base workflow run