avif integration: Update libavif dependency to a319893

The update fixes proguard stripping/obfuscating of native code
and java members that are being accessed from native code.

Fixes Github issue #4761.

PiperOrigin-RevId: 434574974

Author: vigneshvg

integration/avif/build.gradle

@@ -2,7 +2,7 @@ apply plugin: 'com.android.library'
 
 dependencies {
     implementation project(':library')
-    implementation 'org.aomedia.avif.android:avif:0.9.3.545a756'
+    implementation 'org.aomedia.avif.android:avif:0.9.3.a319893'
     implementation "com.google.guava:guava:${GUAVA_VERSION}"
 
     annotationProcessor project(':annotation:compiler')