[testnet] Backport the LRU prefix caching of find_{keys,key_values}_by_prefix (#4576) by @MathieuDutSik in https://github.com/linera-io/linera-protocol/pull/4964
feat: Add Grafana Alloy configuration support for observability (backport to testnet_conway) by @eldios in https://github.com/linera-io/linera-protocol/pull/4944
web-thread backport to testnet_conway by @Twey in https://github.com/linera-io/linera-protocol/pull/4985
deployment: add support for the LRU cache by @eldios in https://github.com/linera-io/linera-protocol/pull/4981
Fix missing committee blob handling. (#4978) by @afck in https://github.com/linera-io/linera-protocol/pull/4993
Improve exporter logging. by @deuszx in https://github.com/linera-io/linera-protocol/pull/4996
[testnet] Allow filtering incoming messages by application. (#4989) by @afck in https://github.com/linera-io/linera-protocol/pull/5003
backport #4961: improve readability of BucketQueueView by @ma2bd in https://github.com/linera-io/linera-protocol/pull/5004
[testnet] Improve the speed of pre_save in BucketQueueView (#5011) by @MathieuDutSik in https://github.com/linera-io/linera-protocol/pull/5012