set-output command deprecated in last release

[julienloizelet]

Describe the bug

Hi, and thanks for this useful action :)

When running the last 2.1.1 release, there is a 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/

Reading the content of the link to follow, we have :

Starting 1st June 2023 workflows using save-state or set-output commands via stdout will fail with an error.

I saw that it has been fixed in this commit : c85e3f4

Is it possible to have a new release that include this commit (or to schedule one before June)?

Steps to Reproduce

1. Run the 2.1.1 version

Expected behavior
No warning

Additional context

[jeffpaul]

@julienloizelet thanks for the detailed report, I'll see if we've got someone that can work on a fix for this but would otherwise be open to anyone else able to contribute a PR as well

[julienloizelet]

Hi @jeffpaul, fix is already done with this commit c85e3f4

It would be enough to publish a release integrating this commit.

Thanks

[adriaandotcom]

@jeffpaul could you merge that commit when you have time? End of this month, the plugin will no longer work because of the deprecation of the set-output function.

[bmarshall511]

@jeffpaul Think this one can be closed, I see the c85e3f4 change in both the develop and stable branches.