Draft: Update zlib1g, zlib1g-dev and libaom3

What does this MR do?

• Gemnasium-maven: Updates zlib1g to it's latest version
• Gemnasium-python: Updates zlib1g, zlib1g-dev and libaom3 to their latest versions

Fixes:

• https://gitlab.com/gitlab-org/security-products/analyzers/gemnasium/-/security/vulnerabilities/103666658
• https://gitlab.com/gitlab-org/security-products/analyzers/gemnasium/-/security/vulnerabilities/97584782
• https://gitlab.com/gitlab-org/security-products/analyzers/gemnasium/-/security/vulnerabilities/97584781
• https://gitlab.com/gitlab-org/security-products/analyzers/gemnasium/-/security/vulnerabilities/97584780

What are the relevant issue numbers?

• gitlab-org/secure/general#297 (closed)
• https://gitlab.com/gitlab-org/gitlab/-/issues/442606+
• https://gitlab.com/gitlab-org/gitlab/-/issues/442605+
• https://gitlab.com/gitlab-org/gitlab/-/issues/442604+

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