Update PHPStan packages to v2

.changes/unreleased/Release-renovate-1791601339443.yaml

@@ -0,0 +1,13 @@
+kind: Release
+body: |
+  - jangregor/phpstan-prophecy: ^1.0 ->  ^2.0
+  - phpstan/phpstan: ^1.10 ->  ^2.0
+  - phpstan/phpstan-deprecation-rules: ^1.1 ->  ^2.0
+  - phpstan/phpstan-doctrine: ^1.3 ->  ^2.0
+  - phpstan/phpstan-phpunit: ^1.3 ->  ^2.0
+  - phpstan/phpstan-strict-rules: ^1.5 ->  ^2.0
+  - phpstan/phpstan-symfony: ^1.3 ->  ^2.0
+
+time: 2026-10-10T03:02:19+00:00
+custom:
+  Issue: ""