Roll luci_go to 18502e6a01811b0c2dd2a0250e81bd82e47d2c2d

https://chromium.googlesource.com/infra/infra/+/18502e6a01811b0c2dd2a0250e81bd82e47d2c2d

Bug: 1127205
Change-Id: Ia58d7727f1b877bd4c48b62fa4c0872bd449be50
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2409393
Commit-Queue: Ye Kuang <yekuang@google.com>
Reviewed-by: Takuto Ikuta <tikuta@chromium.org>
Cr-Commit-Position: refs/heads/master@{#806576}

DEPS

@@ -171,7 +171,7 @@ vars = {
   # luci-go CIPD package version.
   # Make sure the revision is uploaded by infra-packagers builder.
   # https://ci.chromium.org/p/infra-internal/g/infra-packagers/console
-  'luci_go': 'git_revision:b022173f8069cf8001d4cf2a87ce7c5f0eae220f',
+  'luci_go': 'git_revision:18502e6a01811b0c2dd2a0250e81bd82e47d2c2d',
 
   # This can be overridden, e.g. with custom_vars, to build clang from HEAD
   # instead of downloading the prebuilt pinned revision.