Update save state

Save state has been updated to new env files.

https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

v1.4

Old version was failing on trying to run python from /usr/local/python. This should fix that failure.

What's Changed

• feat: Explicit python call by @joncrain in #2

Full Changelog: v1.3...v1.4

Adding Subdirectory

Merge pull request #1 from joncrain/add_subdir_option

Add subdir option

Release version

Some changes on the readme, but functionality should be the same as 1.1.

Adding inputs

v1.1

Add input to readme

Initial release

v1.0

Add note about runner

Beta

v0.1

Change to curl