Bump phpunit/phpunit from 8.4.0 to 8.4.1

Bumps [phpunit/phpunit](https://github.com/sebastianbergmann/phpunit) from 8.4.0 to 8.4.1.
- [Release notes](https://github.com/sebastianbergmann/phpunit/releases)
- [Changelog](https://github.com/sebastianbergmann/phpunit/blob/master/ChangeLog-8.4.md)
- [Commits](https://github.com/sebastianbergmann/phpunit/compare/8.4.0...8.4.1)

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

composer.lock

@@ -5617,16 +5617,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "8.4.0",
+            "version": "8.4.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "57e5e77b62086033528ee1f4063ae03035f57894"
+                "reference": "366a4a0f2b971fd43b7c351d621e8dd7d7131869"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/57e5e77b62086033528ee1f4063ae03035f57894",
-                "reference": "57e5e77b62086033528ee1f4063ae03035f57894",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/366a4a0f2b971fd43b7c351d621e8dd7d7131869",
+                "reference": "366a4a0f2b971fd43b7c351d621e8dd7d7131869",
                 "shasum": ""
             },
             "require": {
@@ -5696,7 +5696,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2019-10-04T03:12:25+00:00"
+            "time": "2019-10-07T12:57:41+00:00"
         },
         {
             "name": "sebastian/code-unit-reverse-lookup",