Configure PromoteParameterRule for issue-bot

[staabm]

issue-bot currently misses these errors/fixes, see #4381 (comment)

1:1 copy of the config from https://github.com/phpstan/phpstan/blob/2.1.x/playground-runner/playground.neon

[staabm]

hmm thinking again.. maybe we should just enable the optional rules in issue bot..?

or maybe even just enable bleeding edge?

[staabm]

.. hmm reflecting the playground settings 1:1 seems to be the most intuive fix, which is also reasonable for the end-user (least suprising)

[phpstan-bot]

This pull request has been marked as ready for review.

[ondrejmirtes]

1. I didn't do this on purpose because I'm afraid that dozens, or maybe even hundreds of comments would spam the issue tracker when this would get enabled.
2. You don't see any changes now because these rules are also filtered in code

   phpstan-src/issue-bot/src/Playground/TabCreator.php

   Line 31 in 4972fd9

   $errors = array_values(array_filter($errors, static fn (PlaygroundError $error) => $error->getIdentifier() !== 'phpstanPlayground.configParameter'));