Use longer timeout to run sign_virt_apex in tests

sign_virt_apex is so slow that tests invoking it occasionally fail on CI
server. Until fixing it (making it fast) use longer timeout for those
tests to avoid presubmit failures.

Bug: 229721225
Test: presubmit
Change-Id: I8fbe589380ee20440f81ad5b721016bfd20a4148
diff --git a/tests/hostside/java/android/virt/test/MicrodroidTestCase.java b/tests/hostside/java/android/virt/test/MicrodroidTestCase.java
index 7944245..32bdf3b 100644
--- a/tests/hostside/java/android/virt/test/MicrodroidTestCase.java
+++ b/tests/hostside/java/android/virt/test/MicrodroidTestCase.java
@@ -153,7 +153,9 @@
         command.add(virtApexDir.getPath());
 
         CommandResult result = runUtil.runTimedCmd(
-                                    20 * 1000,
+                                    // sign_virt_apex is so slow on CI server that this often times
+                                    // out. Until we can make it fast, use 50s for timeout
+                                    50 * 1000,
                                     "/bin/bash",
                                     "-c",
                                     String.join(" ", command));