build(deps-dev): update phpstan/phpstan requirement from ^1.10.46 to ^1.10.50 (#17)

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

composer.json

@@ -12,7 +12,7 @@
         "doctrine/annotations": "^2.0.1",
         "editorconfig-checker/editorconfig-checker": "^10.4.0",
         "ergebnis/composer-normalize": "^2.19.0",
-        "phpstan/phpstan": "^1.10.46",
+        "phpstan/phpstan": "^1.10.50",
         "phpstan/phpstan-phpunit": "^1.3.15",
         "phpstan/phpstan-strict-rules": "^1.5.2",
         "phpunit/phpunit": "^8.5.36",