Update shipmonk/phpstan-rules requirement in the phpstan group

Updates the requirements on [shipmonk/phpstan-rules](https://github.com/shipmonk-rnd/phpstan-rules) to permit the latest version.

Updates `shipmonk/phpstan-rules` to 3.1.0
- [Release notes](https://github.com/shipmonk-rnd/phpstan-rules/releases)
- [Commits](shipmonk-rnd/phpstan-rules@3.0.0...3.1.0)

---
updated-dependencies:
- dependency-name: shipmonk/phpstan-rules
  dependency-type: direct:development
  dependency-group: phpstan
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

composer.json

@@ -27,7 +27,7 @@
         "phpunit/phpunit": "^8.5.21 || ^9.5.10",
         "phpstan/phpstan-strict-rules": "1.6.0",
         "spaze/phpstan-disallowed-calls": "3.4.0",
-        "shipmonk/phpstan-rules": "3.0.0",
+        "shipmonk/phpstan-rules": "3.1.0",
         "phpstan/phpstan-phpunit": "1.4.0",
         "php-parallel-lint/php-parallel-lint": "1.4.0",
         "nepada/coding-standard": "7.14.0",