Update CODEOWNERS and PR labeler for Android

PiperOrigin-RevId: 532883237
Change-Id: I45712a33d17091646d7ab232ff41b8874ab08851

Author: keertk

.github/labeler.yml

@@ -37,6 +37,7 @@ team-Rules-Java:
 team-Android:
 - src/tools/android/java/com/google/devtools/build/android/**/*
 - src/test/java/com/google/devtools/build/android/**/*
+- src/test/shell/bazel/android/**/*
 
 team-Configurability:
 - src/main/java/com/google/devtools/build/lib/analysis/**/*

CODEOWNERS

@@ -27,6 +27,8 @@ android/ @ahumesky @ted-xie
 
 /src/test/java/com/google/devtools/build/android/dexer/ @ahumesky @ted-xie @kevin1e100
 
+/src/test/shell/bazel/android/ @ahumesky @ted-xie
+
 # Apple
 
 /src/main/java/com/google/devtools/build/lib/rules/apple @bazelbuild/rules_apple-team