Update peer dependency for @capacitor/core to 6.0.0

[piotr-cz]

📢 Type of change

• Bugfix
• New feature
• Enhancement
• Refactoring

📜 Description

This package dropped support for old Capacitor versions (3.x, 4,x 5x) in #907, but peerDependency stayed as >=3, probably as an oversight.

💡 Motivation and Context

For example here (Peer Dependency section) it might look that current package version still supports old Capacitor versions.

💚 How did you test it?

Did not test

📝 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

In my opinion the version range >= is too broad and it should list each major, just as in devDependencies section does as it is not known if this package will work with Capacitor v9:

sentry-capacitor/package.json

Lines 65 to 68 in 0a6c295

	"devDependencies": {
	"@capacitor/android": "^6.0.0 || ^7.0.0 || ^8.0.0",
	"@capacitor/core": "^6.0.0 || ^7.0.0 || ^8.0.0",
	"@capacitor/ios": "^6.0.0 || ^7.0.0 || ^8.0.0",