The `set-output` command is deprecated and will be disabled soon.

[Apollon77]

We get some warnings on GitHub when using the action (master version):

Warning: The set-output command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

[gabririgo]

also this warning is produced:

Node.js 12 actions are deprecated. For more information see: https://github.blog/changelog/2022-09-22-github-actions-all-actions-will-begin-running-on-node16-instead-of-node12/. Please update the following actions to use Node.js 16: coverallsapp/github-action

[jakirkham]

Was just setting this up using the latest version today and saw this warning.

[robsonpeixoto]

The PR #139 address it