Update dependency phpstan/phpstan-phpunit to ^1.3.11 (#107)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
|
[phpstan/phpstan-phpunit](https://togithub.com/phpstan/phpstan-phpunit)
| require-dev | patch | `^1.3.10` -> `^1.3.11` |

---

### Release Notes

<details>
<summary>phpstan/phpstan-phpunit</summary>

###
[`v1.3.11`](https://togithub.com/phpstan/phpstan-phpunit/releases/tag/1.3.11)

[Compare
Source](https://togithub.com/phpstan/phpstan-phpunit/compare/1.3.10...1.3.11)

-
[9e1b9de](http://github.com/phpstan/phpstan-phpunit/commit/9e1b9de6d260461f6e99b6a8f2dbb0bbb98b579c)
- Warn when trying to cover an interface.
-
[ceea85e](http://github.com/phpstan/phpstan-phpunit/commit/ceea85eb8c43e5ae22040c18d3f360ca9ad5dc4f)
- Update PHPCS
-
[f659243](http://github.com/phpstan/phpstan-phpunit/commit/f6592437762938425a51e6613bbac649c0bd7daa)
- Update metcalfc/changelog-generator action to v4.1.0

</details>

---

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composer.json

@@ -20,7 +20,7 @@
         "php-cs-fixer/shim": "^3.15.1",
         "phpstan/phpstan": "^1.10.8",
         "phpstan/phpstan-deprecation-rules": "^1.1.3",
-        "phpstan/phpstan-phpunit": "^1.3.10",
+        "phpstan/phpstan-phpunit": "^1.3.11",
         "phpstan/phpstan-strict-rules": "^1.5.0",
         "phpunit/phpunit": "^10.0.18",
         "rector/rector": "^0.15.23",