fix: Gradle not detected on mac

[zakblacki]

Steps to reproduce : shorebird doctor -v

`g-besoin@MacBook-Air-de-G-Besoin ~ % shorebird doctor -v
Shorebird 1.2.2 • [email protected]:shorebirdtech/shorebird.git
Flutter 3.24.1 • revision 01eadfbfbbe78b64aed76ea9f422eb432fd339cb
Engine • revision 8978a5e50daa39aa1180d57c7ec991e787d7f545

Logs: /Users/g-besoin/Library/Application Support/shorebird/logs
Android Toolchain
  • Android Studio: /Applications/Android Studio.app/Contents
  • Android SDK: /Users/g-besoin/Library/Android/sdk
  • ADB: /Users/g-besoin/Library/Android/sdk/platform-tools/adb
  • JAVA_HOME: /Applications/Android Studio.app/Contents/jbr/Contents/Home
  • JAVA_EXECUTABLE: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
  • JAVA_VERSION: openjdk version "17.0.11" 2024-04-16
                  OpenJDK Runtime Environment (build 17.0.11+0-17.0.11b1207.24-11852314)
                  OpenJDK 64-Bit Server VM (build 17.0.11+0-17.0.11b1207.24-11852314, mixed mode)
                  
  • Gradle: not detected

✓ Shorebird is up-to-date (1.6s)
✓ Flutter install is correct (0.8s)
✓ Has access to storage.googleapis.com (0.4s)

No issues detected!
g-besoin@MacBook-Air-de-G-Besoin ~ % 
`

I have also tested on root path project : I get Gradle : Unknown

and on root/android/ Gradle : not detected