Bump aosp contacts to target SDK 31

Add mutability to pending intents

Test: Build and install on S device
Fixes: 198787169
Change-Id: I9196c30ea68075b2ca641f361799a6e9f80659d6
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 32d6644..b4b15b0 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -21,7 +21,7 @@
 
     <uses-sdk
         android:minSdkVersion="21"
-        android:targetSdkVersion="30"/>
+        android:targetSdkVersion="31"/>
 
     <original-package android:name="com.android.contacts"/>