Add libz to shared libs of heapprofd_standalone_client

libz is no longer statically linked into libunwindstatck, so needs to be
added explicitly to the shared libs of this library.

Bug: 281077552
Test: presubmits
Change-Id: Ib22c6ffe79aa4d64c3ab9afdeaac770f4d87e477
diff --git a/Android.bp b/Android.bp
index bbcf9e6..cd17ed0 100644
--- a/Android.bp
+++ b/Android.bp
@@ -380,6 +380,7 @@
     ],
     shared_libs: [
         "liblog",
+        "libz",
     ],
     static_libs: [
         "libasync_safe",