fix: avoid concurrent modification in base data cache

[TheoLi0905]

Fixes #7018

Publish immutable selector and rule list snapshots, and use atomic ConcurrentMap compute operations instead of modifying cached lists in place.

Tests:

• BaseDataCacheTest and CommonPluginDataSubscriberTest
• LocalPluginControllerTest

Make sure that:

• You have read the contribution guidelines.
• You submit test cases that back your changes.
• Your local test passed ./mvnw clean install -Dmaven.javadoc.skip=true.