Bump phpunit/phpunit from 9.5.20 to 9.5.21

Bumps [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit) from 9.5.20 to 9.5.21.
- [Release notes](https://github.com/sebastianbergmann/phpunit/releases)
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/main/ChangeLog-9.5.md)
- [Commits](https://github.com/sebastianbergmann/phpunit/compare/9.5.20...9.5.21)

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

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

composer.lock

@@ -10040,16 +10040,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "9.5.20",
+            "version": "9.5.21",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "12bc8879fb65aef2138b26fc633cb1e3620cffba"
+                "reference": "0e32b76be457de00e83213528f6bb37e2a38fcb1"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/12bc8879fb65aef2138b26fc633cb1e3620cffba",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/0e32b76be457de00e83213528f6bb37e2a38fcb1",
-                "reference": "12bc8879fb65aef2138b26fc633cb1e3620cffba",
+                "reference": "0e32b76be457de00e83213528f6bb37e2a38fcb1",
                 "shasum": ""
             },
             "require": {
@@ -10083,7 +10083,6 @@
                 "sebastian/version": "^3.0.2"
             },
             "require-dev": {
-                "ext-pdo": "*",
                 "phpspec/prophecy-phpunit": "^2.0.1"
             },
             "suggest": {
@@ -10127,7 +10126,7 @@
             ],
             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/9.5.20"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/9.5.21"
             },
             "funding": [
                 {
@@ -10139,7 +10138,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2022-04-01T12:37:26+00:00"
+            "time": "2022-06-19T12:14:25+00:00"
         },
         {
             "name": "pimple/pimple",