fix(core): Fix allowUrls and denyUrls for linked and aggregate exceptions

[lforst]

Fixes #15513

The allowUrls and denyUrls logic up until now only looked at the first entry in the values field of an error event which is complete bogus for aggregate errors and linked errors because the "root" event in the former is one without parent id and in the latter simply the latest entry in the values array.

[github-actions]

size-limit report 📦

Path	Size	% Change	Change
@sentry/browser	23.12 KB	+0.14%	+32 B 🔺
@sentry/browser - with treeshaking flags	22.9 KB	+0.15%	+35 B 🔺
@sentry/browser (incl. Tracing)	36.18 KB	+0.1%	+34 B 🔺
@sentry/browser (incl. Tracing, Replay)	73.35 KB	+0.04%	+30 B 🔺
@sentry/browser (incl. Tracing, Replay) - with treeshaking flags	66.77 KB	+0.05%	+30 B 🔺
@sentry/browser (incl. Tracing, Replay with Canvas)	77.97 KB	+0.05%	+32 B 🔺
@sentry/browser (incl. Tracing, Replay, Feedback)	90.54 KB	+0.04%	+29 B 🔺
@sentry/browser (incl. Feedback)	40.26 KB	+0.09%	+34 B 🔺
@sentry/browser (incl. sendFeedback)	27.74 KB	+0.12%	+33 B 🔺
@sentry/browser (incl. FeedbackAsync)	32.54 KB	+0.1%	+32 B 🔺
@sentry/react	24.93 KB	+0.14%	+34 B 🔺
@sentry/react (incl. Tracing)	38.07 KB	+0.1%	+38 B 🔺
@sentry/vue	27.36 KB	+0.12%	+33 B 🔺
@sentry/vue (incl. Tracing)	37.87 KB	+0.09%	+33 B 🔺
@sentry/svelte	23.15 KB	+0.16%	+36 B 🔺
CDN Bundle	24.32 KB	+0.14%	+33 B 🔺
CDN Bundle (incl. Tracing)	36.21 KB	+0.11%	+40 B 🔺
CDN Bundle (incl. Tracing, Replay)	71.23 KB	+0.05%	+35 B 🔺
CDN Bundle (incl. Tracing, Replay, Feedback)	76.4 KB	+0.05%	+34 B 🔺
CDN Bundle - uncompressed	71.09 KB	+0.12%	+85 B 🔺
CDN Bundle (incl. Tracing) - uncompressed	107.47 KB	+0.08%	+85 B 🔺
CDN Bundle (incl. Tracing, Replay) - uncompressed	218.74 KB	+0.04%	+85 B 🔺
CDN Bundle (incl. Tracing, Replay, Feedback) - uncompressed	231.3 KB	+0.04%	+85 B 🔺
@sentry/nextjs (client)	39.23 KB	+0.09%	+34 B 🔺
@sentry/sveltekit (client)	36.59 KB	+0.09%	+33 B 🔺
@sentry/node	142.12 KB	+0.02%	+22 B 🔺
@sentry/node - without tracing	95.54 KB	+0.03%	+24 B 🔺
@sentry/aws-serverless	119.89 KB	+0.03%	+26 B 🔺

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