Port PR from PBC-Java: Feature: configurable secondary cache and cache proxy timeouts

[cross-repo-issue-creation]

A PR was merged over on PBC-Java

• Feature: configurable secondary cache and cache proxy timeouts prebid-cache-java#162
• timestamp: 2025-03-31T20:59:24Z

[Net-burst]

@bsardo IDK whether PBC-Go has secondary cache functionality. This issue has no meaning and can be closed if it doesn't.