Revert "Revert "Disable valgrind test, they are not passing because of slow server""

This reverts commit d0b250cb.
4 jobs for master in 17 minutes and 10 seconds (queued for 13 seconds)
Status Job ID Name Coverage
  Test
passed #112385
test

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passed #112386
test_busybox

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  Pages
passed #112387
pages

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  Deploy
passed pages:deploy

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