ref: Migrate sample apps to package references

[NinjaLikesCheez]

📜 Description

Migrate Sample apps to use package references (instead of project references) so that we can enable traits when testing v10 & any future trait we introduce.

💡 Motivation and Context

Sample apps currently reference the Xcode project rather than the SPM package, which means that we lose SPM traits in the sample apps. This can be worked around by manually setting compiler flags. However, it would be nicer if the sample apps use package references instead and inherit the ability to set traits within the Xcode UI.

💚 How did you test it?

This is a WIP - this section will be updated as time flows inevitably past us all. For now, I'm using 'it builds' as the check to move onto the next sample app and before setting this to 'ready-to-merge' I'll be doing a more thorough testing (including CI)

📝 Checklist

You have to check all boxes before merging:

• I added tests to verify the changes.
• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• I updated the docs if needed.
• I updated the wizard if needed.
• Review from the native team if needed.
• No breaking change or entry added to the changelog.
• No breaking change for hybrid SDKs or communicated to hybrid SDKs.
• If I added a new public API, I also added it to the SentryObjC wrapper.

#skip-changelog

[NinjaLikesCheez]

Added label to trigger the CI, will move out of draft when it's ready for review

[sentry]

📲 Install Builds

iOS

🔗 App Name	App ID	Version	Configuration
SDK-Size	io.sentry.sample.SDK-Size	9.18.0 (1)	Release

⚙️ sentry-cocoa Build Distribution Settings

[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	1231.71 ms	1262.72 ms	31.01 ms
Size	24.14 KiB	1.19 MiB	1.16 MiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
bdd8e0e	1233.35 ms	1266.96 ms	33.60 ms
92fada5	1217.60 ms	1252.89 ms	35.30 ms
fc4e913	1231.79 ms	1267.89 ms	36.11 ms
e56c394	1229.37 ms	1245.86 ms	16.49 ms
39655d1	1224.05 ms	1258.38 ms	34.33 ms
ccf353a	1233.79 ms	1268.77 ms	34.98 ms
bd2b6d3	1213.78 ms	1253.83 ms	40.06 ms
8693a8f	1222.37 ms	1249.31 ms	26.95 ms
ae8cece	1216.83 ms	1251.37 ms	34.55 ms
ce1ec47	1212.60 ms	1247.61 ms	35.02 ms

App size

Revision	Plain	With Sentry	Diff
bdd8e0e	24.14 KiB	1.16 MiB	1.13 MiB
92fada5	24.14 KiB	1.17 MiB	1.15 MiB
fc4e913	24.14 KiB	1.17 MiB	1.15 MiB
e56c394	24.14 KiB	1.16 MiB	1.13 MiB
39655d1	24.14 KiB	1.16 MiB	1.14 MiB
ccf353a	24.14 KiB	1.17 MiB	1.15 MiB
bd2b6d3	24.14 KiB	1.17 MiB	1.14 MiB
8693a8f	24.14 KiB	1.16 MiB	1.13 MiB
ae8cece	24.14 KiB	1.15 MiB	1.13 MiB
ce1ec47	24.14 KiB	1.15 MiB	1.13 MiB

Previous results on branch: migrate-sample-apps-to-package-references

Startup times

Revision	Plain	With Sentry	Diff
fba90a8	1221.17 ms	1253.23 ms	32.07 ms
435caa9	1211.65 ms	1248.80 ms	37.16 ms

App size

Revision	Plain	With Sentry	Diff
fba90a8	24.14 KiB	1.18 MiB	1.16 MiB
435caa9	24.14 KiB	1.18 MiB	1.16 MiB