Remove custom ExpiringValueCache in favor of a Caffeine implementation

[jtduffy]

Overview

Resolves #1791

• Add a new method to AgentBridge.collectionFactory to return a Caffeine based eviction cache
• Implement the new method in DefaultCollectionFactory (see comment in source) and AgentCollectionFactory
• Remove ExpiringValueMap classes and related tests
• TTL for JdbcHelper caches is configurable via jdbc_helper_cache_expire_time - default is 2 hours

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 50.00000% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 70.66%. Comparing base (afda029) to head (7932037). Report is 3 commits behind head on main.

Files	Patch %	Lines
...om/newrelic/agent/util/AgentCollectionFactory.java	0.00%	2 Missing :warning:
...ewrelic/agent/bridge/DefaultCollectionFactory.java	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1890 +/- ## ============================================ - Coverage 70.69% 70.66% -0.03% + Complexity 9880 9858 -22 ============================================ Files 828 826 -2 Lines 39851 39804 -47 Branches 6064 6062 -2 ============================================ - Hits 28171 28127 -44 + Misses 8954 8951 -3 Partials 2726 2726 ```

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