fix(android): AGP 9.0 no longer supports proguard-android.txt

[jb3rndt]

Resolves #1197

📢 Type of change

• Bugfix
• New feature
• Enhancement
• Refactoring

📜 Description

This replaces proguard-android.txt with proguard-android-optimize.txt to make the package compatible with android gradle plugin v9.

💡 Motivation and Context

💚 How did you test it?

📝 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
• No breaking changes

🔮 Next steps

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[github-actions]

Semver Impact of This PR

🟢 Patch (bug fixes)

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Bug Fixes 🐛

• (android) AGP 9.0 no longer supports proguard-android.txt by jb3rndt in #1196

Internal Changes 🔧

• Update validate-pr workflow by stephanie-anderson in #1198
• Pin GitHub Actions to full-length commit SHAs by joshuarli in #1180

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[sdk-maintainer-bot]

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[lucas-zimerman]

Thank you for the PR!

Since we really don't apply any proguard rules here, let's just remove the following snippet:

  buildTypes {                                                                                                                         
    release {                                                                                                                          
      minifyEnabled false                                                                                                              
      proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'                                      
    }                                                                                                                                  
  }           

and also delete the proguard-android.txt file in android/proguard-rules.pro

What do you think?

[jb3rndt]

Hi Lucas, yeah sounds reasonable. I have replaced the previous commit with your suggestion :)