[FEATURE] Fail build in case there are errors in spotbugsMain

[sgup432]

Is your feature request related to a problem?
A change was done here - https://github.com/opensearch-project/performance-analyzer-rca/pull/156/files to set ignorFailures as true to allow build to pass. This was done as they were many ~300 medium warnings and was not possible to fix in 2.0.

What solution would you like?
A clear and concise description of what you want to happen.

What alternatives have you considered?
A clear and concise description of any alternative solutions or features you've considered.

Do you have any additional context?
Add any other context or screenshots about the feature request here.