Update Custom CA bundle path in RedHat images

What does this MR do?

• Upgrade common module to v3.2.3 to fix custom CA certs for UBI-based images
• Update the Custom CA bundle path in the RedHat image in gemnasium, gemnasium-maven, gemnasium-python and sbomgen-golang analyzers adhering to the correct approach of updating CA bundle certificates in UBI-based images
• Update rspec tests that confirm the logical change introduced in this MR

Note: In addition to verifying the change via rspec integration tests in this project, I created an MR that fixes the testing implementation in custom-ca integration tests. It also provides an explanation and a sample pipeline indicating why the current business logic and its testing implementation are failing and how the new logic addresses the problem.

What are the relevant issue numbers?

• gitlab-org/gitlab#418729 (comment 1471440320)

Does this MR meet the acceptance criteria?

• Changelog entry added
• Documentation created/updated for GitLab EE, if necessary
• Documentation created/updated for this project, if necessary
• Documentation reviewed by technical writer or follow-up review issue created
• Tests added for this feature/bug
• Job definition updated, if necessary
  • Auto-DevOps template
  • Job definition example
  • CI Templates
• Conforms to the code review guidelines
• Conforms to the Go guidelines
• Security reports checked/validated by reviewer