Single lookup improvements (#5488)

* Fix unexpected `UnrequestedBlobId` and `ExtraBlocksReturned` errors due to race conditions.

* Continue chain segment processing and skip any blocks that are already known, rather than returning an error.

* more de-dup checking

* ensure we don't reset `requested_ids` during rpc download

* better fix

* Merge branch 'unstable' of https://github.com/sigp/lighthouse into more-dup-lookup-fixes

* remove chain hash check

* Merge branch 'fix-block-lookup-race' of https://github.com/jimmygchen/lighthouse into sean-test-lookups

* remove block check

* add back tests

* Log and CI fixes

* undue extra check

* Merge branch 'sean-test-lookups' of https://github.com/realbigsean/lighthouse into sean-test-lookups

* log improvements

* Improve logging

beacon_node/network/src/sync/block_lookups/tests.rs

@@ -1803,6 +1803,7 @@ mod deneb_only {
             .expect_blobs_request()
             .expect_no_block_request();
     }
+
     #[test]
     fn too_few_blobs_response_then_block_response_attestation() {
         let Some(tester) = DenebTester::new(RequestTrigger::AttestationUnknownBlock) else {