message: Add 1955 to the changelog
diff: * [#1894](https://github.com/wasmerio/wasmer/pull/1894) Added exports `wasmer::{CraneliftOptLevel, LLVMOptLevel}` to allow using `Cranelift::opt_level` and `LLVM::opt_level` directly via the `wasmer` crate
  ### Changed
  +* [#1955](https://github.com/wasmerio/wasmer/pull/1955) Set `jit` as a default feature of the `wasmer-wasm-c-api` crate
  ### Fixed
  