fix: race condition caused by the attribute `not_after` in a certificate being too short

[santiagorodriguez96]

What

There seems to be a race condition between thenot_after attribute in OpenSSL::X509::Certificate and the execution that is causing the tests to be flaky.

Why

As I mentioned in the original discussion, the problem is that when we create a certificate, we make it that is only valid for just 60 seconds. Therefore, if the execution takes longer than 60 seconds for checking if the certificate is valid, eventually the certificate will be considered invalid.

Backtrace

• KeyAttestation#valid? fails because aik_certificate.conformant? returns false
• AIKCertificate#conformant? fails in in_use?
• AIKCertificate#in_use? fails given than now < not_after returns false

How

To fix this, I decided to double the time in which a certificate is considered valid.

[santiagorodriguez96]

Closing this PR given that this is not what is causing the test to be flaky