This is mostly a shorter version of `uv run` that infers a requirement
name from the command. The main goal here is to do the smallest amount
of work necessary to get #3560 started.

Closes #3613 

e.g.
```shell
$ uv tool run -- ruff check
warning: `uv tool run` is experimental and may change without warning.
Resolved 1 package in 34ms
Installed 1 package in 2ms
 + ruff==0.4.4
error: Failed to parse example.py:1:5: Expected an expression
example.py:1:5: E999 SyntaxError: Expected an expression
Found 1 error.
```