Replace set-output with environment files

Thanks @brian-maloney for this update

migrate to Debian slim base image

The Action package has been migrated to Debian slim base Python image because it already have required libraries preinstalled for the github api package. Also I'm done with Alpine at all.

use fixed version of base container

Thanks @chrisjohnson00 for #14

Hotfix 1.6

Build hotfix due Python version updated for the python:alpine base image PR #12

fix assets out of range

Merge pull request #7 from darora/main

avoid failing if release does not have any assets associated with it

new outputs added

Added multiple outputs

Outputs

Action outputs 3 variables

• release - release tag
• release_id - release Github ID
• browser_download_url - URL to download first file in release assets

added licence

Merge pull request #4 from rez0n/add-license-1

Create LICENSE

added nodraft option

Merge pull request #3 from jaylusonos/main

Added "nodraft" filtering

v1.1 - Guest mode

Added guest mode, token variable no more mandatory.

Initial release of Action

v1.0

fix readme