Warning: The `set-output` command is deprecated

[Roberto-Gentili]

On this configuration:

uses: egor-tensin/setup-mingw@v2
with:
    platform: x86

This warning is printed:

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/

[juan-lunarg]

Looks like this can be closed as of https://github.com/egor-tensin/setup-mingw/commit/3fe42b779393693ece2e71eb995781aada92f0a0