* Bump Wasmtime to 0.33.1

[automatically-tag-and-release-this-commit]

* Update RELEASES for 0.33.1.

* Try to fix CI for Rust 1.58 (#3689)

PATH lookup for WIndows command execution was tweaked slightly to not
search the cwd, so let's see if this fixes things...

Co-authored-by: Wasmtime Publish <wasmtime-publish@users.noreply.github.com>
Co-authored-by: Peter Huene <phuene@fastly.com>
Co-authored-by: Alex Crichton <alex@alexcrichton.com>