v0.4.1

Dependencies updated to latest stable versions (#56). Notable bumps: syn 2.0 -> 3.0 (ironfix-derive), quick-xml 0.41 -> 0.42 with the dictionary loader migrated to str-based element and attribute names, num-derive 0.4 -> 0.5, tokio 1.52 -> 1.53, smallvec 1.15 -> 1.16, rust_decimal 1.42 -> 1.43. Pre-existing rustdoc intra-doc link warnings fixed in ironfix-derive, ironfix-codegen and ironfix-engine. No public API or behaviour change: cargo semver-checks reports no semver update required for every analysable crate.

Published to crates.io as ironfix-core 0.4.1
Published to crates.io as ironfix-derive 0.4.1
Published to crates.io as ironfix-tagvalue 0.4.1
Published to crates.io as ironfix-dictionary 0.4.1
Published to crates.io as ironfix-store 0.4.1
Published to crates.io as ironfix-session 0.4.1
Published to crates.io as ironfix-transport 0.4.1
Published to crates.io as ironfix-fast 0.4.1
Published to crates.io as ironfix-codegen 0.4.1
Published to crates.io as ironfix-engine 0.4.1
Published to crates.io as ironfix-example 0.4.1