[TASK] Update to PHPStan 1.9.12

The new version finds some more potential problems.

> composer req --dev phpstan/phpstan:^1.9.12
> ./Build/Scripts/runTests.sh -s phpstanGenerateBaseline

Resolves: #99573
Releases: main, 11.5
Change-Id: Ieee3a5881a854946cb180965e4f182b27ea05aaf
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/77419
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>

Build/phpstan/phpstan-baseline.neon

@@ -335,6 +335,11 @@ parameters:
 			count: 1
 			path: ../../typo3/sysext/core/Classes/Core/ClassLoadingInformationGenerator.php
 
+		-
+			message: "#^Binary operation \"&\" between string and int\\<1, max\\> results in an error\\.$#"
+			count: 1
+			path: ../../typo3/sysext/core/Classes/DataHandling/DataHandler.php
+
 		-
 			message: "#^Binary operation \"\\*\\=\" between non\\-falsy\\-string and \\-1 results in an error\\.$#"
 			count: 1

composer.json

@@ -110,7 +110,7 @@
 		"friendsofphp/php-cs-fixer": "^3.12.0",
 		"friendsoftypo3/phpstan-typo3": "^0.9.0",
 		"php-webdriver/webdriver": "^1.13.0",
-		"phpstan/phpstan": "^1.9.5",
+		"phpstan/phpstan": "^1.9.12",
 		"phpstan/phpstan-phpunit": "^1.3.3",
 		"phpunit/phpunit": "^9.5.25",
 		"typo3/cms-styleguide": "~12.0@dev",