Update acme_dns_tiny.py to update the magic waiting time so all CI tests pass

6 jobs for v2 in 17 minutes and 18 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
failed #333
jessie

00:05:30

passed #334
jessie_backport

00:05:59

90.0%
passed #335
stretch

00:05:49

90.0%
canceled #330
jessie

00:04:18

failed #331
jessie_backport

00:04:07

canceled #332
stretch

 
Name Stage Failure
failed
jessie Test There is an unknown failure, please try again
ValueError: Error triggering challenge: 400 b'{\n  "type": "urn:ietf:params:acme:error:badNonce",\n  "detail": "JWS has an invalid anti-replay nonce: \\"zBKC0TGXzRSWLU6UlaEqbyHLOE8fz03wjZdKs2UGBv8\\"",\n  "status": 400\n}'

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Ran 12 tests in 281.570s

FAILED (errors=1)
Running after script...
$ sleep 10
ERROR: Job failed: exit code 1