Verify the expected certificate (and chain) is received in all certificate tests

[anrossi]

Describe the bug

In all certificate tests, make sure to validate the certificate and chain are the expected values on the receiving side.

Affected OS

• All
• Windows Server 2022
• Windows 11
• Windows Insider Preview (specify affected build below)
• Ubuntu
• Debian
• Other (specify below)

Additional OS information

No response

MsQuic version

main

Steps taken to reproduce bug

N/A

Expected behavior

N/A

Actual outcome

N/A

Additional details

No response