Evaluate if there is any benefit on OPCT results and validation environment when running the suites in serial mode.

why? We are seeing a slightly high number of failures in 'know platforms' such as AWS, even checking the existing flakes. We need to check if the parallel is impacting the results.

Goal:

• Run OPCT on AWS (Platform=None) with default execution (parallel)
• Run OPCT on AWS (Platform=None) with both suites (kubernetes/conformance and openshift/conformance) in serial mode

Collect the results of both and measure the differences, focusing on:

• failure ratio
• plugin execution time and total execution time