Fix phpstan workflow file (#28741)

* Fix phpstan workflow file

# Fix phpstan workflow file

Line was split in two, joined

* qual: set memory limit to 'unlimited' (-1)

* Remove some stubs to check impact

* Fix: Verify execution time limit

* Remove stub files to reuse cache

* Qual: Rename distribution phpstan.neon to phpstan.neon.dist

# Qual: Rename distribution phpstan.neon to phpstan.neon.dist

This allows the developer to override some settings locally

Also update the .gitignore file with phpstan.neon and some other other
ignores (cache, local log files, temporary edit files).

* Enable debug on phpstan

* Re-enable stubs

* Fix: Change parallel settings to defaults, remove buffer

'buffer' is not a documented parameter, removing it.
Removing some configuration settings as the defaults are higher and
should adapt better to the target machine

.gitignore

@@ -66,8 +66,21 @@ doc/install.lock
 /composer.json
 /composer.lock
 
-# to execute pre-commit
-local.sh
+# Local script, executed during pre-commit
+/local.sh
+
+# Local phpstan configuration
+/phpstan.neon
+/phpstan-baseline.neon
+
+# Logs
+/*.log
+
+# Vim swap files
+*.sw?
+
+# Generated by PHPUNIT.BAT
+/INI_PHPUNIT
 
 # ignore cache builds
 /build/phpstan/phpstan
@@ -75,3 +88,4 @@ local.sh
 phpstan_custom.neon
 /.php-cs-fixer.cache
 /.php_cs.cache
+/.cache