Update to fixed coverage wheel.

Bug: 1233745
Change-Id: I335b88a7674069cd18c176f4d8a77fd320946719
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3125754
Commit-Queue: Brian Ryner <bryner@google.com>
Commit-Queue: Dirk Pranke <dpranke@google.com>
Auto-Submit: Brian Ryner <bryner@google.com>
Reviewed-by: Dirk Pranke <dpranke@google.com>
Cr-Commit-Position: refs/heads/main@{#916106}

.vpython3

@@ -226,7 +226,7 @@ wheel: <
 #   testing/buildbot/generate_buildbot_json_coveragetest.py
 wheel: <
   name: "infra/python/wheels/coverage/${vpython_platform}"
-  version: "version:5.5"
+  version: "version:5.5.chromium.2"
 >
 
 # Used by: