Bump phpstan/phpstan from 2.1.19 to 2.1.20

Bumps [phpstan/phpstan](https://github.com/phpstan/phpstan) from 2.1.19 to 2.1.20.
- [Release notes](https://github.com/phpstan/phpstan/releases)
- [Changelog](https://github.com/phpstan/phpstan/blob/2.1.x/CHANGELOG.md)
- [Commits](https://github.com/phpstan/phpstan/compare/2.1.19...2.1.20)

---
updated-dependencies:
- dependency-name: phpstan/phpstan
  dependency-version: 2.1.20
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

composer.lock

@@ -11065,16 +11065,16 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "2.1.19",
+            "version": "2.1.20",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "473a8c30e450d87099f76313edcbb90852f9afdf"
+                "reference": "a9ccfef95210f92ba6feea6e8d1eef42b5605499"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/473a8c30e450d87099f76313edcbb90852f9afdf",
-                "reference": "473a8c30e450d87099f76313edcbb90852f9afdf",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/a9ccfef95210f92ba6feea6e8d1eef42b5605499",
+                "reference": "a9ccfef95210f92ba6feea6e8d1eef42b5605499",
                 "shasum": ""
             },
             "require": {
@@ -11119,7 +11119,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2025-07-21T19:58:24+00:00"
+            "time": "2025-07-26T20:45:26+00:00"
         },
         {
             "name": "phpstan/phpstan-deprecation-rules",