Fix RollbackManagerHostTest.

This fixes a test break caused when the version of the apk
in the shim apex was increased.

Bug: 154920675
Test: atest RollbackManagerHostTest
Change-Id: Iba7c4c18b4dd4b486a7e734b58140c48a24e6351
diff --git a/hostsidetests/rollback/app/src/com/android/cts/rollback/host/app/HostTestHelper.java b/hostsidetests/rollback/app/src/com/android/cts/rollback/host/app/HostTestHelper.java
index 4f8f7d8..9a6db96b 100644
--- a/hostsidetests/rollback/app/src/com/android/cts/rollback/host/app/HostTestHelper.java
+++ b/hostsidetests/rollback/app/src/com/android/cts/rollback/host/app/HostTestHelper.java
@@ -57,7 +57,7 @@
             "com.android.apex.cts.shim.v2_signed_bob_rot_rollback.apex");
     private static final String ApkInShimApexPackageName = "com.android.cts.ctsshim";
     private static final String PrivApkInShimApexPackageName = "com.android.cts.priv.ctsshim";
-    private static final long ApkInShimApexVersion = 28;
+    private static final long ApkInShimApexVersion = 29;
 
     /**
      * Adopts common permissions needed to test rollbacks.