refactor: upgrade to use phpstan 2 and rector 2

[samsonasik]

Description

This PR upgrade to use PHPStan 2 and Rector 2.

Checklist:

• Securely signed commits
• Component(s) with PHPDoc blocks, only if necessary or adds value
• Unit testing, with >80% coverage
• User guide updated
• Conforms to style guide

[samsonasik]

/cc @ddevsr

[samsonasik]

phpstan-codeigniter seems stil require phpstan v1, so in there should be updated first:

 Problem 1
- Root composer.json requires codeigniter/phpstan-codeigniter ^1.4 -> satisfiable by codeigniter/phpstan-codeigniter[v1.4.0, ..., v1.5.1].
- codeigniter/phpstan-codeigniter[v1.4.0, ..., v1.4.2.70400] require phpstan/phpstan ^1.10 -> found phpstan/phpstan[1.10.0, ..., 1.12.12] but it conflicts with your root composer.json require (^2.0).

[samsonasik]

Ok, bump to use phpstan-codeigniter 1.5.1 is the way 9b6d9bf

[samsonasik]

install seems got codeigniter ^4.5 conflict notice:

Loading composer repositories with package information
Updating dependencies
Your requirements could not be resolved to an installable set of packages.
Problem 1
- Root composer.json requires codeigniter/phpstan-codeigniter ^1.5.1 -> satisfiable by codeigniter/phpstan-codeigniter[v1.5.1].
- codeigniter/phpstan-codeigniter v1.5.1 requires codeigniter4/framework ^4.5 -> found codeigniter4/framework[v4.5.0, ..., v4.5.5] but these were not loaded, likely because it conflicts with another require.

ref https://github.com/codeigniter4/CodeIgniter4/actions/runs/12333325314/job/34422197398?pr=9322

@paulbalandan@kenjis any idea?

[paulbalandan]

@samsonasik that should be taken care of in #9299, i just need to get @kenjis ' approval

[paulbalandan]

@samsonasik pls rebase in latest develop. probably you would just need to update rector version

[samsonasik]

Rebased 👍

[samsonasik]

Setup PHP error seems unrelated:

==> Setup PHP
✗ PHP Could not setup PHP 8.3
Error: The process '/usr/bin/bash' failed with exit code 1

[ddevsr]

LGTM

[paulbalandan]

I think this is good to go. I'm merging this.