Bug 1472930: [release] Decrease max runtime for update-verify; r=jlorenzo

These typically run for 25-50 minutes. So, if they are taking longer than that,
there is likely a problem.

Differential Revision: https://phabricator.services.mozilla.com/D2252

--HG--
extra : moz-landing-system : lando

taskcluster/ci/release-update-verify/kind.yml

@@ -29,7 +29,7 @@ job-defaults:
       os: linux
       docker-image:
          in-tree: "update-verify"
-      max-run-time: 7200
+      max-run-time: 3600
       retry-exit-status:
          - 255
       env: