update NDK to 28.0.13004108

Author: thestinger

braille/brltty/build.gradle

@@ -3,7 +3,7 @@ apply from: "../../shared.gradle"
 
 android {
     namespace "com.google.android.accessibility.braille.brltty"
-    ndkVersion "27.2.12479018"
+    ndkVersion "28.0.13004108"
     externalNativeBuild {
         ndkBuild {
             path file('src/phone/jni/Android.mk')

braille/translate/build.gradle

@@ -3,7 +3,7 @@ apply from: "../../shared.gradle"
 
 android {
     namespace "com.google.android.accessibility.braille.translate"
-    ndkVersion "27.2.12479018"
+    ndkVersion "28.0.13004108"
     externalNativeBuild {
         ndkBuild {
             path file('src/phone/jni/Android.mk')