PHP 8.1 and 8.2 + reusable workflows

[Chrico]

Please check if the PR fulfills these requirements

• [x] The commit message follows our guidelines
• [x] Tests for the changes have been added (for bug fixes/features)
• [x] Docs have been added/updated (for bug fixes/features)

What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)

Adds support for PHP 8.1 and 8.2 in reusable workflows. Makes use of inpsyde/reusable-workflows

Does this PR introduce a breaking change? (What changes might users need to make in their application due to this PR?)

nope

Other information:

🤷🏻