How to add my plugins locally then push to heroku ? I need a simple 1,2,3 steps guide

[imGameNinja]

Description of your issue

...I need a simple 1,2,3 steps guide

every time i try to push from my local host I get these errors

Steps to Reproduce

remote: ! WARNING: Your app's PHP version is no longer actively maintained
remote: !
remote: ! Only security updates will be provided for your PHP version
remote: ! series by the PHP Group until its end-of-life on 2022-11-28.
remote: !
remote: ! It is strongly recommended you update your app to a version of
remote: ! PHP with "active support" status immediately to ensure you get
remote: ! the latest bugfixes and security updates each time you deploy.
remote: !
remote: ! You may check the list of versions supported by the PHP Group
remote: ! and their EOL dates here: http://php.net/supported-versions.php
remote: !
remote: ! For a list of supported runtimes & extensions on Heroku, please
remote: ! refer to: https://devcenter.heroku.com/articles/php-support

Other Information

Git Commit/Version: