[3.6] bpo-34542: Update test certs and keys (GH-8997)#9396

Merged

miss-islington merged 1 commit intopython:3.6from

tiran:backport-e6dac00-3.6

Sep 20, 2018

Commits on Sep 18, 2018

[3.6] bpo-34542: Update test certs and keys (GH-8997)
tiran
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