chore(phpstan): update phpstan version and clear phpstan baseline

See merge request !23

Summary of changes:
- Removed redundant PHPDoc from `ExecCrons` class.
- Ensured the input `cronId` is cast to an integer before calling `runCron` in `ExecCrons` class.
- Removed extraneous details from PHPDoc in `Manager` class.
- Added more robust checking for parameters in `Manager` class.
- Included method existence check for `deactivate` before calling it in `QuiqqerCrons` class.

These changes contribute towards improving cron execution and handling potential errors more
gracefully.

Related: #57

This commit updates the type declaration syntax in the `ExecCrons.php` and `Manager.php` files to
use a space around the `|` operator for better code readability. This change does not affect the
functionality of the code. Minor structural change.

Updated the version of `phpstan` in `.phive/phars.xml` to `1.*` and installed `1.12.13`. Removed
the specific lines of ignored errors in `phpstan-baseline.neon` to keep it clean and avoid masking
significant errors. Now, `phpstan` will provide better and more specific coding style issues and
potential bugs.

Next 2.x

See merge request !21

Next 2.x

See merge request !20

Dev archive

See merge request !19

Next 2.x

See merge request !18

Dev archive

See merge request !17

Next

See merge request !16

Dev

See merge request !15

feat!: quiqqer v2

See merge request !14

feat!: quiqqer v2

See merge request !13

feat!: quiqqer v2

See merge request !12

BREAKING CHANGE: quiqqer v2 has been renamed to quiqqer/core. a new major version will be created here so that we can still develop for both versions.