devel/py-oci: Update to 2.12.1

• Support for the Secrets Management service
• Support for the Big Data service
• Support for updating class name, file URI, language, and spark version of applications in the Data Flow service
• Support for cross-region replication in the Object Storage service
• Support for retention rules in the Object Storage service
• Support for enabling and disabling pod security policy admission controllers in the Container Engine for Kubernetes service

PR: 245214
Submitted by: Alessandro Sagratini <ale_sagra@hotmail.com> (maintainer)
Relnotes: https://github.com/oracle/oci-python-sdk/releases/tag/v2.12.2