[roll] Roll fuchsia [test_manager] Move some packages to subpackages

Move most used runners and make sure that none of our builder breaks,
before moving all other runners.

Run-All-Tests: true

BUG=118041

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/822205
Original-Revision: b28cab58c37166ae2fe609aff2dd70e75181bb36
GitOrigin-RevId: 48ee50cda1a66b4a244a80b79c8c21d922bb7b04
Change-Id: I44a3029f89ca92be021ce7f73ab3cdfc09b23cce

stem

diff --git a/stem b/stem
index bfef112..6240878 100644
--- a/stem
+++ b/stem
@@ -11,7 +11,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="84e52e1035cd3c62572aeaef3d27fd6062567997"/>
+             revision="b28cab58c37166ae2fe609aff2dd70e75181bb36"/>
   </projects>
   <hooks>
     <hook name="install-environment"