chore: Deprecate options.enableTracing.

[brustolin]

Deprecating options.enableTracing in order to completely remove it in the next major.

Closes #4177

[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1219.12 ms	1231.48 ms	12.36 ms
Size	21.58 KiB	683.64 KiB	662.06 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
699d76f	1238.08 ms	1257.67 ms	19.59 ms
46267d8	1229.80 ms	1244.16 ms	14.37 ms
c0b4b71	1218.16 ms	1251.28 ms	33.12 ms
455619d	1231.40 ms	1237.70 ms	6.30 ms
103d817	1211.55 ms	1213.35 ms	1.80 ms
7bbb7c3	1232.40 ms	1249.78 ms	17.38 ms
1ac58a6	1232.07 ms	1254.69 ms	22.63 ms
e998fd0	1241.49 ms	1262.63 ms	21.14 ms
42ef6ba	1201.67 ms	1214.35 ms	12.67 ms
ef5821b	1253.18 ms	1265.46 ms	12.28 ms

App size

Revision	Plain	With Sentry	Diff
699d76f	21.58 KiB	631.82 KiB	610.24 KiB
46267d8	21.58 KiB	572.21 KiB	550.63 KiB
c0b4b71	20.76 KiB	430.98 KiB	410.22 KiB
455619d	20.76 KiB	432.87 KiB	412.11 KiB
103d817	21.58 KiB	571.91 KiB	550.33 KiB
7bbb7c3	21.58 KiB	418.78 KiB	397.20 KiB
1ac58a6	21.58 KiB	626.07 KiB	604.49 KiB
e998fd0	21.58 KiB	414.59 KiB	393.01 KiB
42ef6ba	21.58 KiB	417.86 KiB	396.28 KiB
ef5821b	21.58 KiB	414.96 KiB	393.37 KiB

Previous results on branch: deprecate/enableTrace

Startup times

Revision	Plain	With Sentry	Diff
0841b08	1227.76 ms	1248.77 ms	21.02 ms

App size

Revision	Plain	With Sentry	Diff
0841b08	21.58 KiB	681.74 KiB	660.16 KiB

[github-actions]

	Fails
🚫	Please consider adding a changelog entry for the next release.

Instructions and example for changelog

Please add an entry to CHANGELOG.md to the "Unreleased" section. Make sure the entry includes this PR's number.

Example:

## Unreleased

- Deprecate options.enableTracing ([#4182](https://github.com/getsentry/sentry-cocoa/pull/4182))

If none of the above apply, you can opt out of this check by adding #skip-changelog to the PR description.

Generated by 🚫 dangerJS against 078cd6a