update wasm-component-ld to 0.5.5 (#448)

This includes support for a new `--component-type` option, which allows passing
one or more component types as WIT files rather than (or in addition to) object
files, which can be preferable when such files must be stored in source control.

Signed-off-by: Joel Dice <joel.dice@fermyon.com>

cmake/wasi-sdk-toolchain.cmake

@@ -119,7 +119,7 @@ install(DIRECTORY ${wasi_tmp_install}/bin ${wasi_tmp_install}/lib ${wasi_tmp_ins
 # Build logic for `wasm-component-ld` installed from Rust code.
 set(wasm_component_ld_root ${CMAKE_CURRENT_BINARY_DIR}/wasm-component-ld)
 set(wasm_component_ld ${wasm_component_ld_root}/bin/wasm-component-ld${CMAKE_EXECUTABLE_SUFFIX})
-set(wasm_component_ld_version 0.5.4)
+set(wasm_component_ld_version 0.5.5)
 if(RUST_TARGET)
   set(rust_target_flag --target=${RUST_TARGET})
 endif()