Use proguard-android-optimize.txt for the default ProGuard rules (#7428)

AGP 9 disallows the non-optimized `proguard-android.txt` file
(`android.r8.proguardAndroidTxt.disallowed=true` by default). Switching to
`proguard-android-optimize.txt` is behavior-neutral here since these modules do
not minify (minifyEnabled = false), and aligns the build with the AGP 9 default
ahead of an eventual bump.

Author: rvandermeulen

build-scripts/component-common.gradle

@@ -30,7 +30,7 @@ android {
     buildTypes {
         release {
             minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
             consumerProguardFiles "$appServicesRootDir/proguard-rules-consumer-jna.pro"
         }
     }

megazords/full/android/build.gradle

@@ -21,7 +21,7 @@ android {
     buildTypes {
         release {
             minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
             consumerProguardFiles "$rootDir/proguard-rules-consumer-jna.pro"
         }
     }