Given how rust-matrix-state-map hasn't had an update in six years and all other dependencies of this software are pinned, I think it's safe and a good idea to pin this version too. This will also help with packaging efforts downstream, for example in https://github.com/NixOS/nixpkgs/pull/303704.
I forgot to update Cargo.lock initially and also missed the fact that compressor_integration_tests also had the state-map dependency, force pushed to fix these issues.
Given how rust-matrix-state-map hasn't had an update in six years and all other dependencies of this software are pinned, I think it's safe and a good idea to pin this version too. This will also help with packaging efforts downstream, for example in https://github.com/NixOS/nixpkgs/pull/303704.