Make LUCI_OWNERS owners of .cipd_impl.ps1

Change-Id: I5199bb2497ff66c89cd80d858b18826344a124d8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2521844
Auto-Submit: Edward Lesmes <ehmaldonado@chromium.org>
Commit-Queue: Vadim Shtayura <vadimsh@chromium.org>
Reviewed-by: Vadim Shtayura <vadimsh@chromium.org>

OWNERS

@@ -29,6 +29,7 @@ per-file cipd_manifest*=file://GOMA_OWNERS
 
 # LUCI related tooling
 per-file bb*=file://LUCI_OWNERS
+per-file .cipd_impl.ps1=file://LUCI_OWNERS
 per-file cipd*=file://LUCI_OWNERS
 per-file cit*=file://LUCI_OWNERS
 per-file led*=file://LUCI_OWNERS