[roll] Roll fuchsia [zircon][docs] Update fx set command for running core tests

Apparently we need to use `--with-test` instead of `--with` now.

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1172412
Original-Revision: 922c9be53316904cdfa9ee726f9195cf27da8ab6
GitOrigin-RevId: 91b42feede29956a2ba513f295f0b2dcf7653535
Change-Id: Iee2cace62aa543c0dc84f2ee57605e2d2dae05b5

Author: Adam Barth

stem

@@ -11,7 +11,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="7b00160ea207bb11392380850e489e6ae3206bb8"/>
+             revision="922c9be53316904cdfa9ee726f9195cf27da8ab6"/>
   </projects>
   <hooks>
     <hook name="install-environment"