Re-enable TradeFed ART run-test `096-array-copy-concurrent-gc`.

Re-enable run-time support for ART run-test
`art-run-test-096-array-copy-concurrent-gc`.

This test was disabled in automated executions early
(https://android-review.googlesource.com/c/platform/art/+/1352353).
Re-enable it, as it seems to be working fine now.

Test: atest -a art-run-test-096-array-copy-concurrent-gc
Bug: 147814778
Change-Id: I4b31950a0d1a397684b801aa89fb7e6d21f8a6cd
diff --git a/test/utils/regen-test-files b/test/utils/regen-test-files
index 6647c9c..7ccc496 100755
--- a/test/utils/regen-test-files
+++ b/test/utils/regen-test-files
@@ -97,7 +97,6 @@
   "054-uncaught",
   "086-null-super",
   "087-gc-after-link",
-  "096-array-copy-concurrent-gc",
   # 1002-notify-startup: Dependency on `libarttest` + custom `check` script.
   "1002-notify-startup",
   "115-native-bridge",