Fix ActivityLifecycleSpanHelperTest by resetting AppStartMetrics

[adinauer]

#skip-changelog

📜 Description

Fix ActivityLifecycleSpanHelperTest by resetting AppStartMetrics

💡 Motivation and Context

💚 How did you test it?

📝 Checklist

• 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.

🔮 Next steps

[github-actions]

	Messages
📖	Do not forget to update Sentry-docs with your feature once the pull request gets approved.

Generated by 🚫 dangerJS against 4cb6851

[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	385.02 ms	439.86 ms	54.84 ms
Size	1.65 MiB	2.31 MiB	677.51 KiB

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
00c8eeb	415.32 ms	428.08 ms	12.76 ms

App size

Revision	Plain	With Sentry	Diff
00c8eeb	1.70 MiB	2.36 MiB	671.98 KiB

Previous results on branch: feat/fix-activity-lifecycle-span-helper-test

Startup times

Revision	Plain	With Sentry	Diff
a2ee75b	401.30 ms	466.69 ms	65.39 ms

App size

Revision	Plain	With Sentry	Diff
a2ee75b	1.65 MiB	2.31 MiB	677.51 KiB

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