Increase test timeout on ASAN bots.
Increase test timeout on ASAN bots.

It will still occassionaly fail due to a timeout when running in an ASAN
bot.

BUG=465862

Review URL: https://codereview.chromium.org/1246203004

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#340354}

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