fix(core): Parse method from Request object in fetch

[s1gr1d]

Fixes the case that the instrumentation defaulted to GET in case undefined was parsed as a second fetch argument.

const request = new Request("https://httpbin.org/post", { method: "POST" });

const response = await fetch(request, undefined);   <-- will be GET (should be POST)

Closes #18455 (added automatically)

[github-actions]

size-limit report 📦

Path	Size	% Change	Change
@sentry/browser	24.81 kB	+0.02%	+3 B 🔺
@sentry/browser - with treeshaking flags	23.3 kB	-0.02%	-4 B 🔽
@sentry/browser (incl. Tracing)	41.55 kB	+0.02%	+8 B 🔺
@sentry/browser (incl. Tracing, Profiling)	46.14 kB	+0.02%	+9 B 🔺
@sentry/browser (incl. Tracing, Replay)	79.97 kB	+0.02%	+9 B 🔺
@sentry/browser (incl. Tracing, Replay) - with treeshaking flags	69.7 kB	+0.03%	+15 B 🔺
@sentry/browser (incl. Tracing, Replay with Canvas)	84.64 kB	+0.02%	+9 B 🔺
@sentry/browser (incl. Tracing, Replay, Feedback)	96.89 kB	+0.01%	+8 B 🔺
@sentry/browser (incl. Feedback)	41.52 kB	+0.08%	+32 B 🔺
@sentry/browser (incl. sendFeedback)	29.49 kB	+0.01%	+1 B 🔺
@sentry/browser (incl. FeedbackAsync)	34.48 kB	+0.05%	+15 B 🔺
@sentry/react	26.52 kB	+0.01%	+1 B 🔺
@sentry/react (incl. Tracing)	43.75 kB	+0.03%	+11 B 🔺
@sentry/vue	29.27 kB	+0.07%	+20 B 🔺
@sentry/vue (incl. Tracing)	43.36 kB	+0.05%	+18 B 🔺
@sentry/svelte	24.82 kB	-0.02%	-4 B 🔽
CDN Bundle	27.24 kB	+0.1%	+26 B 🔺
CDN Bundle (incl. Tracing)	42.23 kB	+0.04%	+15 B 🔺
CDN Bundle (incl. Tracing, Replay)	78.75 kB	+0.01%	+7 B 🔺
CDN Bundle (incl. Tracing, Replay, Feedback)	84.21 kB	+0.02%	+9 B 🔺
CDN Bundle - uncompressed	80.04 kB	+0.11%	+80 B 🔺
CDN Bundle (incl. Tracing) - uncompressed	125.39 kB	+0.05%	+52 B 🔺
CDN Bundle (incl. Tracing, Replay) - uncompressed	241.42 kB	+0.03%	+52 B 🔺
CDN Bundle (incl. Tracing, Replay, Feedback) - uncompressed	254.18 kB	+0.03%	+52 B 🔺
@sentry/nextjs (client)	45.97 kB	+0.03%	+11 B 🔺
@sentry/sveltekit (client)	41.92 kB	+0.06%	+21 B 🔺
@sentry/node-core	51.27 kB	-0.01%	-1 B 🔽
@sentry/node	159.53 kB	-	-
@sentry/node - without tracing	92.85 kB	-	-
@sentry/aws-serverless	108.14 kB	-	-

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.

Scenario	Requests/s	% of Baseline	Prev. Requests/s	Change %
GET Baseline	8,871	-	8,696	+2%
GET With Sentry	1,693	19%	1,699	-0%
GET With Sentry (error only)	6,098	69%	6,010	+1%
POST Baseline	1,204	-	1,126	+7%
POST With Sentry	602	50%	580	+4%
POST With Sentry (error only)	1,062	88%	1,050	+1%
MYSQL Baseline	3,314	-	3,339	-1%
MYSQL With Sentry	443	13%	453	-2%
MYSQL With Sentry (error only)	2,713	82%	2,684	+1%

View base workflow run

[JPeer264]

LGTM