migrate stripe android to kgp 9

[remonh87]

keep backwards compatibility

@jonasbark we may need to spend some time totally rewriting the build.gradle to the new DSL but we may need to wait for Stripe to pick on this.

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Summary by CodeRabbit

• Chores
  • Updated the payment SDK to a newer version.
  • Improved Android build compatibility with newer development tools and Kotlin settings.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 45cbb18d-0783-4c82-9511-973f628ba5c1

📥 Commits

Reviewing files that changed from the base of the PR and between 7f5463c and 72bceb7.

📒 Files selected for processing (3)

• example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
• example/ios/Runner.xcworkspace/xcshareddata/swiftpm/Package.resolved
• packages/stripe_android/android/build.gradle

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📝 Walkthrough

Walkthrough

Updates both iOS SwiftPM lockfiles to stripe-ios-spm 25.17.0 and adjusts the Android Gradle script to gate kotlin-android on AGP major version while moving the Kotlin JVM target to top-level compiler options.

Changes

iOS SwiftPM pin update

Layer / File(s)	Summary
SwiftPM lockfile pin update example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved, example/ios/Runner.xcworkspace/xcshareddata/swiftpm/Package.resolved	Both iOS Package.resolved files replace the stripe-ios-spm revision and version with 25.17.0 and a new lockfile hash.

Android Gradle Kotlin configuration

Layer / File(s)	Summary
Conditional kotlin-android plugin packages/stripe_android/android/build.gradle	The build script parses the Android Gradle Plugin major version and applies kotlin-android only when it is below 9.
Kotlin JVM target migration packages/stripe_android/android/build.gradle	android.kotlinOptions.jvmTarget is removed, and a top-level kotlin.compilerOptions.jvmTarget sets JVM_17.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Suggested reviewers

• jonasbark

Poem

A bunny hopped through build-time snow,
Tweaking pins so packages glow.
One ear up for AGP's guise,
One hop for Kotlin's 17 skies. 🐰
I nibble on bugs and watch them go.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly matches the main Android build migration to Kotlin Gradle Plugin 9.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch migrate-to-flutter-kgp

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