Allow verifier to call getAppMetadata

The package verifier should be able to getAppMetadata to be able
to verify the full package, including metadata.

Test: Builds
Bug: 325892296
Change-Id: Id24a46f23b7f8f070bdceb9a0ba03395b67d5218
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 900f9cb..525bdc9 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -7986,7 +7986,7 @@
         @hide
       -->
     <permission android:name="android.permission.GET_APP_METADATA"
-                android:protectionLevel="signature|installer" />
+                android:protectionLevel="signature|installer|verifier" />
 
     <!-- @hide @SystemApi Allows an application to stage HealthConnect's remote data so that
          HealthConnect can later integrate it. -->