fix(deps): update rust crate genco to 0.19.0

Author: renovate[bot]

postcard-bindgen-core/Cargo.toml

@@ -22,7 +22,7 @@ heapless = ["dep:heapless"]
 generating = ["std", "dep:genco", "dep:convert_case", "dep:tree-ds"]
 
 [dependencies.genco]
-version = "0.17.10"
+version = "0.19.0"
 optional = true
 
 [dependencies.convert_case]

postcard-bindgen-derive/Cargo.toml

@@ -25,7 +25,7 @@ serde_derive_internals = "0.29"
 syn = "2.0.53"
 serde = "1"
 proc-macro2 = "1.0"
-genco = "0.17.8"
+genco = "0.19.0"
 convert_case = "0.6.0"
 regex = "1.10.3"
 regex-macro = "0.2.0"