docs: Update 8.19.0 changelog

[antonis]

📢 Type of change

• Bugfix
• New feature
• Enhancement
• Refactoring

📜 Description

Update 8.19.0 changelog with warnings

📝 Checklist

• I added tests to verify 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.
• All tests passing.
• Public API changes reviewed by another Mobile SDK team member or implemented according to the develop docs spec.
• No breaking changes.

🔮 Next steps

Update release notes when this is merged https://github.com/getsentry/sentry-react-native/releases/tag/8.19.0

[github-actions]

Semver Impact of This PR

⚪ None (no version bump detected)

📋 Changelog Preview

This is how your changes will appear in the changelog.
Entries from this PR are highlighted with a left border (blockquote style).

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• docs: Update 8.19.0 changelog by antonis in #6498

• chore(deps): bump fast-uri from 3.1.2 to 3.1.4 by dependabot in #6496
• chore(deps): pin glob 10.x to ^10.5.0 (dev-only advisory) by antonis in #6489
• chore(deps): bump brace-expansion resolutions to ^2.1.2 (dev-only advisory) by antonis in #6488
• chore(deps): add cross-spawn ^7.0.6 resolution (dev-only advisory) by antonis in #6487
• chore(deps): bump js-yaml resolution to ^4.3.0 (dev-only advisory) by antonis in #6486
• chore(deps): update CLI to v3.6.1 by github-actions in #6493
• chore(deps): update JavaScript SDK to v10.67.0 by github-actions in #6494
• chore(deps): update JavaScript SDK to v10.66.0 by github-actions in #6471
• chore(deps): update Maestro to v2.7.0 by github-actions in #6481
• chore(ios): Bump iOS binary size limit to 1650 KiB by antonis in #6485
• chore(deps): bump tar from 7.5.16 to 7.5.20 by dependabot in #6483
• chore(deps): bump shell-quote from 1.8.4 to 1.10.0 by dependabot in #6484
• chore(deps): bump the codeql-action group with 3 updates by dependabot in #6475
• chore(deps): bump brace-expansion from 1.1.13 to 1.1.16 by dependabot in #6482
• chore(deps): bump axios from 1.16.0 to 1.18.1 by dependabot in #6479
• chore(deps): bump actions/setup-java from 5.5.0 to 5.6.0 by dependabot in #6476

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_{🤖 This preview updates automatically when you update the PR.}

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