Refactor TrieLogPruner preload timeout to be more testable

[siladu]

An improved version of #7365

Example of INFO level logging during timeout...

{"@timestamp":"2024-07-29T11:58:49,398","level":"INFO","thread":"main","class":"TrieLogPruner","message":"Trie log pruner queue preload starting...","throwable":""}
{"@timestamp":"2024-07-29T11:58:49,399","level":"INFO","thread":"main","class":"TrieLogPruner","message":"Attempting to load first 5000 trie logs from database...","throwable":""}
{"@timestamp":"2024-07-29T11:58:49,400","level":"INFO","thread":"main","class":"TrieLogPruner","message":"Trie log pruning will timeout after 30 seconds. If this is timing out, consider using `besu storage trie-log prune` subcommand, see https://besu.hyperledger.org/public-networks/how-to/bonsai-limit-trie-logs","throwable":""}
{"@timestamp":"2024-07-29T11:59:19,401","level":"WARN","thread":"main","class":"TrieLogPruner","message":"Timeout occurred while loading and processing 5000 trie logs from database","throwable":""}
{"@timestamp":"2024-07-29T11:59:19,437","level":"INFO","thread":"pool-8-thread-1","class":"TrieLogPruner","message":"Operation interrupted, but will attempt to prune what's in the queue so far...","throwable":""}
{"@timestamp":"2024-07-29T11:59:19,452","level":"INFO","thread":"pool-8-thread-1","class":"TrieLogPruner","message":"...pruned 412 trie logs","throwable":""}
{"@timestamp":"2024-07-29T11:59:19,452","level":"INFO","thread":"main","class":"TrieLogPruner","message":"Trie log pruner queue preload complete.","throwable":""}

Fixed Issue(s)

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• Checked out our contribution guidelines?
• Considered documentation and added the doc-change-required label to this PR if updates are required.
• Considered the changelog and included an update if required.
• For database changes (e.g. KeyValueSegmentIdentifier) considered compatibility and performed forwards and backwards compatibility tests

Locally, you can run these tests to catch failures early:

• unit tests: ./gradlew build
• acceptance tests: ./gradlew acceptanceTest
• integration tests: ./gradlew integrationTest
• reference tests: ./gradlew ethereum:referenceTests:referenceTests

Signed-off-by: Simon Dudley simon.dudley@consensys.net

[fab-10]

you could also have used EthScheduler that has support for testing