[roll] Roll fuchsia [starnix] Get "ls" working

After this CL, the following commands work in the shell:

 $ cd /tmp
 $ echo "foo" > foo.txt
 $ toybox ls

Also, enable an lseek test that we pass now.

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/561585
Original-Revision: 1b303a7a0d9f07e3a48f03d577d93f8775020f43
GitOrigin-RevId: 97520946513fa6249ecb52443cfd34b579bc5009
Change-Id: I4b2b2a991178bad9d04a4591cb7219b07911562a
diff --git a/stem b/stem
index 2f56832..5bccd61 100644
--- a/stem
+++ b/stem
@@ -10,7 +10,7 @@
              githooks=""
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="dee787e6ead450af03104643db880f44c526c352"/>
+             revision="1b303a7a0d9f07e3a48f03d577d93f8775020f43"/>
   </projects>
   <hooks>
     <hook name="install-environment"