Fix: Remove the system-Exception ignore errors.

[kai890707]

Description
See #7731

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

[kenjis]

Please rebase to resolve conflicts.
See https://github.com/codeigniter4/CodeIgniter4/blob/develop/contributing/workflow.md#updating-your-branch

[kai890707]

Please rebase to resolve conflicts. See https://github.com/codeigniter4/CodeIgniter4/blob/develop/contributing/workflow.md#updating-your-branch

I synchronized the current develop branch and ran phpstan.

[kenjis]

I synchronized the current develop branch and ran phpstan.

What is synchronized ? What did you do exactly?

This branch is broken. See the diffs:
https://github.com/codeigniter4/CodeIgniter4/pull/7791/files
and this branch still has conflicts.

[kenjis]

If you don't know how to use git, I recommend you try https://learngitbranching.js.org/

For re-review after rebase