v1.1.0: `pip` special casing

In #5 we realized that in some cases, users might want to specify their own pip version and use that to install the other dependencies in the venv. With this release, this is now possible. Just use pip as any other dependency and it will be installed before any other packages so that they are installed using the specified version:

await getVenv({
    name: 'test123',
    pythonVersion: '~3.11',
    requirements: [
        { name: 'pip', version: '~=23.1' },
    ],
});

What's Changed

• Fixes #5: Special-case pip in requirements by @baltpeter in #6

Full Changelog: v1.0.0...v1.1.0