[apkverify] Merge idsig into apkverify package

This CL merges idsig into apkverify package as apkverify is
supposed to cover apk signature verification v3 and v4.

Bug: 248999133
Test: libapkverify.test apkdmverity.test microdroid_manager_test
Change-Id: Ieef2dcf93496164f8bb72cd4ee819ebb822f6142
diff --git a/microdroid_manager/src/main.rs b/microdroid_manager/src/main.rs
index c50bcbe..30521f6 100644
--- a/microdroid_manager/src/main.rs
+++ b/microdroid_manager/src/main.rs
@@ -28,11 +28,10 @@
     VM_BINDER_SERVICE_PORT, VM_STREAM_SERVICE_PORT, IVirtualMachineService,
 };
 use anyhow::{anyhow, bail, ensure, Context, Error, Result};
-use apkverify::{get_public_key_der, verify};
+use apkverify::{get_public_key_der, verify, V4Signature};
 use binder::{wait_for_interface, Strong};
 use diced_utils::cbor::encode_header;
 use glob::glob;
-use idsig::V4Signature;
 use itertools::sorted;
 use log::{error, info};
 use microdroid_metadata::{write_metadata, Metadata};