Invoke scripts from project root

Fixes astral-sh#930

docs/guide/pyproject.md

@@ -127,6 +127,8 @@ with different keys with the most important key being `cmd` which holds the comm
 However if only `cmd` is set, then the object is optional.  `cmd` itself can either be set to a
 string or an array of arguments.
 
+Scripts are invoked from the root of the project (where the `pyproject.toml` is located).
+
 ```toml
 [tool.rye.scripts]
 # These three options are equivalent:

rye/src/cli/run.rs

@@ -138,6 +138,7 @@ fn invoke_script(
     let mut cmd = Command::new(&args[0]);
     cmd.args(&args[1..]);
     cmd.env("VIRTUAL_ENV", &*pyproject.venv_path());
+    cmd.current_dir(pyproject.root_path());
     if let Some(path) = env::var_os("PATH") {
         let mut paths = split_paths(&path).collect::<Vec<_>>();
         paths.insert(0, venv_bin.into());