feat: add rector

[DeepDiver1975]

Description

Related Issue

• Fixes <issue_link>

Motivation and Context

How Has This Been Tested?

• test environment:
• test case 1:
• test case 2:
• ...

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Database schema changes (next release will require increase of minor version instead of patch)
• Breaking change (fix or feature that would cause existing functionality to change)
• Technical debt
• Tests only (no source changes)

Checklist:

• Code changes
• Unit tests added
• Acceptance tests added
• Documentation ticket raised:
• Changelog item, see TEMPLATE

[update-docs]

Thanks for opening this pull request! The maintainers of this repository would appreciate it if you would create a changelog item based on your changes.

[sfadschm]

Will rector then also be used to perform the php 8.2 upgrade?

[DeepDiver1975]

Php 8.2 is already in here #40981

This PR is an experiment..... Let's see....

[sfadschm]

Fingers crossed!

From my experience, rector is a valuable tool and might ease the php upgrade significantly.

But I see you are right, a lot of work towards 8.2 has already been done.

Btw: Thanks for all the work!

[DeepDiver1975]

conflicting meanwhile ...... 🤷