`set-output` command is getting deprecated

[Saviq]

Description:
The set-output command is deprecated:

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

Actions now warn about using it:

Action version:
v3

[vsafonkin]

Hi @Saviq, thank you for your help, we will take a look at this.

[dmitry-shibanov]

Hello @Saviq. Could you please try to use the v4 tag ?

[Saviq]

@dmitry-shibanov thanks, I somehow missed there's a v4, must've been the checkout@v3 above in the README.

Fixed!