Bump phpunit/phpunit in the dev-dependencies group (#127)

Bumps the dev-dependencies group with 1 update: [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit).


Updates `phpunit/phpunit` from 13.1.12 to 13.1.13
- [Release notes](https://github.com/sebastianbergmann/phpunit/releases)
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/13.1.13/ChangeLog-13.1.md)
- [Commits](https://github.com/sebastianbergmann/phpunit/compare/13.1.12...13.1.13)

---
updated-dependencies:
- dependency-name: phpunit/phpunit
  dependency-version: 13.1.13
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dev-dependencies
...

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

composer.lock

@@ -10197,16 +10197,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "13.1.12",
+            "version": "13.1.13",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "ca98c9f757c0e1e0778ab8ff80c4fb84152facf8"
+                "reference": "ddf7f25d9ee9652b464475d7f3bacde2613e355e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/ca98c9f757c0e1e0778ab8ff80c4fb84152facf8",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/ddf7f25d9ee9652b464475d7f3bacde2613e355e",
-                "reference": "ca98c9f757c0e1e0778ab8ff80c4fb84152facf8",
+                "reference": "ddf7f25d9ee9652b464475d7f3bacde2613e355e",
                 "shasum": ""
             },
             "require": {
@@ -10276,7 +10276,7 @@
             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
                 "security": "https://github.com/sebastianbergmann/phpunit/security/policy",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/13.1.12"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/13.1.13"
             },
             "funding": [
                 {
@@ -10284,7 +10284,7 @@
                     "type": "other"
                 }
             ],
-            "time": "2026-05-25T15:37:19+00:00"
+            "time": "2026-05-27T14:03:08+00:00"
         },
         {
             "name": "react/cache",