docs: Clarify no debugger for SentrySDK.crash

[philipphofmann]

Clarify in code docs not to use a debugger attached when testing the SDK with SentrySDK.crash.

Came up in #2975.

#skip-changelog

[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1265.78 ms	1276.28 ms	10.50 ms
Size	20.76 KiB	435.51 KiB	414.75 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
7fb7afb	1202.18 ms	1219.42 ms	17.24 ms
c021422	1199.15 ms	1222.20 ms	23.05 ms
25bcc50	1209.53 ms	1224.86 ms	15.33 ms
3389927	1230.12 ms	1238.04 ms	7.92 ms
83d2d84	1211.31 ms	1227.34 ms	16.03 ms
e8b2fb4	1230.70 ms	1242.84 ms	12.14 ms
6f4d20c	1228.67 ms	1238.88 ms	10.21 ms
ea73af6	1241.69 ms	1252.96 ms	11.27 ms
326b7eb	1204.76 ms	1234.96 ms	30.20 ms
c00eafe	1253.04 ms	1256.41 ms	3.37 ms

App size

Revision	Plain	With Sentry	Diff
7fb7afb	20.76 KiB	419.70 KiB	398.94 KiB
c021422	20.76 KiB	435.64 KiB	414.88 KiB
25bcc50	20.76 KiB	427.22 KiB	406.46 KiB
3389927	20.76 KiB	427.23 KiB	406.46 KiB
83d2d84	20.76 KiB	419.66 KiB	398.90 KiB
e8b2fb4	20.76 KiB	427.23 KiB	406.46 KiB
6f4d20c	20.76 KiB	431.71 KiB	410.95 KiB
ea73af6	20.76 KiB	425.76 KiB	404.99 KiB
326b7eb	20.76 KiB	432.31 KiB	411.55 KiB
c00eafe	20.76 KiB	432.88 KiB	412.12 KiB