[roll] Roll fuchsia [acts] Update acts to run on virtualenv

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/510518
Original-Revision: 0a6a1037a352da59fe394876788b120b74c5d2f8
GitOrigin-RevId: ad7f0971b011d765dd24f1c89b04cc2b2a26cce0
Change-Id: Ic24bc31809adb69a2b1940bb5cf479f462953b8d
diff --git a/stem b/stem
index 244ebaf..d4aecd3 100644
--- a/stem
+++ b/stem
@@ -10,7 +10,7 @@
              githooks=""
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="6c7ffb9e7358cf8fb0e6f7f3d98eeaf0de68520c"/>
+             revision="0a6a1037a352da59fe394876788b120b74c5d2f8"/>
   </projects>
   <hooks>
     <hook name="install-environment"