[roll] Roll fuchsia [go][build] Fix build regression

This regression is caused by more granular third-party golibs added in
https://fxrev.dev/1148373. Fixed by skipping duplicate file
links/copies when prepraing gopath.

Original-Fixed: 377784518
Original-Bug: 377788797
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1152772
Original-Revision: 3962f3f451686e417ee18de2dc5cb13944e41837
GitOrigin-RevId: 12f1aaa0012f761ab0c5e6e81c0acce954d202e7
Change-Id: I39a727a389b7f040fd662a5619a9144347815f17

Author: Jay Zhuang

stem

@@ -11,7 +11,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="fe0477726529afe531f46ad709390d1bc7f035b7"/>
+             revision="3962f3f451686e417ee18de2dc5cb13944e41837"/>
   </projects>
   <hooks>
     <hook name="install-environment"