[Bridge/PhpUnit] Require .php file to fix problem with extra shebang

This commit is a part of fix for https://github.com/symfony/symfony/issues/27035

The other part is https://github.com/symfony/symfony/pull/31364

symfony/phpunit-bridge/4.3/.env.test

@@ -0,0 +1 @@
+../4.1/.env.test

symfony/phpunit-bridge/4.3/bin/phpunit

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+#!/usr/bin/env php
+<?php
+
+if (!file_exists(dirname(__DIR__).'/vendor/symfony/phpunit-bridge/bin/simple-phpunit.php')) {
+    echo "Unable to find the `simple-phpunit.php` script in `vendor/symfony/phpunit-bridge/bin/`.\n";
+    exit(1);
+}
+
+if (false === getenv('SYMFONY_PHPUNIT_VERSION')) {
+    putenv('SYMFONY_PHPUNIT_VERSION=6.5');
+}
+if (false === getenv('SYMFONY_PHPUNIT_REMOVE')) {
+    putenv('SYMFONY_PHPUNIT_REMOVE=');
+}
+if (false === getenv('SYMFONY_PHPUNIT_DIR')) {
+    putenv('SYMFONY_PHPUNIT_DIR='.__DIR__.'/.phpunit');
+}
+
+require dirname(__DIR__).'/vendor/symfony/phpunit-bridge/bin/simple-phpunit.php';

symfony/phpunit-bridge/4.3/config/bootstrap.php

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+../../../../symfony/framework-bundle/3.3/config/bootstrap.php

symfony/phpunit-bridge/4.3/manifest.json

@@ -0,0 +1 @@
+../4.1/manifest.json

symfony/phpunit-bridge/4.3/phpunit.xml.dist

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+../3.3/phpunit.xml.dist

symfony/phpunit-bridge/4.3/post-install.txt

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+../4.1/post-install.txt