Replace PHPStan and GitHub Actions deprecated config

[dansysanalyst]

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Motivation

• Bug fix
• Enhancement
• New feature
• Breaking change

Description

This Pull Request updates GitHubActions set-output and cache@v3 deprecations.

In addition, this PR updates PHPStan config file, complying with the following notifications:

⚠️  You're using a deprecated config option checkMissingIterableValueType ⚠️️

It's strongly recommended to remove it from your configuration file
and add the missing array typehints.

⚠️  You're using a deprecated config option checkGenericClassInNonGenericObjectType ⚠️️

It's strongly recommended to remove it from your configuration file
and add the missing generic typehints.

Related Issue(s):

Documentation

This PR requires Documentation update?

• Yes
• No
• I have already submitted a Documentation pull request.