minor #1503 [Twig][Live] Migrate PHPUnit configuration (smnandre)

This PR was squashed before being merged into the 2.x branch.

Discussion
----------

[Twig][Live] Migrate PHPUnit configuration

```
Warning:       Your XML configuration validates against a deprecated schema.
Suggestion:    Migrate your XML configuration using "--migrate-configuration"!
```

(will batch the other ones if there are no bad surprises in the CI with those ones)

Commits
-------

238866d [Twig][Live] Migrate PHPUnit configuration

Author: weaverryan

src/LiveComponent/phpunit.xml.dist

@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="UTF-8"?>
-
 <!-- https://phpunit.de/manual/current/en/appendixes.configuration.html -->
 <phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:noNamespaceSchemaLocation="vendor/bin/.phpunit/phpunit.xsd"
@@ -8,10 +7,16 @@
          failOnRisky="true"
          failOnWarning="true"
 >
+    <coverage processUncoveredFiles="true">
+        <include>
+            <directory suffix=".php">./src</directory>
+        </include>
+    </coverage>
+
     <php>
-        <ini name="error_reporting" value="-1" />
-        <server name="KERNEL_CLASS" value="Symfony\UX\LiveComponent\Tests\Fixtures\Kernel" />
-        <server name="DATABASE_URL" value="sqlite:///%kernel.project_dir%/var/data.db" />
+        <ini name="error_reporting" value="-1"/>
+        <server name="KERNEL_CLASS" value="Symfony\UX\LiveComponent\Tests\Fixtures\Kernel"/>
+        <server name="DATABASE_URL" value="sqlite:///%kernel.project_dir%/var/data.db"/>
         <env name="SHELL_VERBOSITY" value="-1"/>
         <server name="SYMFONY_DEPRECATIONS_HELPER" value="max[self]=0&amp;max[direct]=0"/>
     </php>
@@ -22,12 +27,6 @@
         </testsuite>
     </testsuites>
 
-    <filter>
-        <whitelist processUncoveredFilesFromWhitelist="true">
-            <directory suffix=".php">./src</directory>
-        </whitelist>
-    </filter>
-
     <listeners>
         <listener class="Symfony\Bridge\PhpUnit\SymfonyTestsListener"/>
     </listeners>

src/TwigComponent/phpunit.xml.dist

@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="UTF-8"?>
-
 <!-- https://phpunit.de/manual/current/en/appendixes.configuration.html -->
 <phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:noNamespaceSchemaLocation="vendor/bin/.phpunit/phpunit.xsd"
@@ -8,9 +7,15 @@
          failOnRisky="true"
          failOnWarning="true"
 >
+    <coverage processUncoveredFiles="true">
+        <include>
+            <directory suffix=".php">./src</directory>
+        </include>
+    </coverage>
+
     <php>
-        <ini name="error_reporting" value="-1" />
-        <server name="KERNEL_CLASS" value="Symfony\UX\TwigComponent\Tests\Fixtures\Kernel" />
+        <ini name="error_reporting" value="-1"/>
+        <server name="KERNEL_CLASS" value="Symfony\UX\TwigComponent\Tests\Fixtures\Kernel"/>
         <server name="SYMFONY_DEPRECATIONS_HELPER" value="max[self]=0&amp;max[direct]=0"/>
     </php>
 
@@ -20,12 +25,6 @@
         </testsuite>
     </testsuites>
 
-    <filter>
-        <whitelist processUncoveredFilesFromWhitelist="true">
-            <directory suffix=".php">./src</directory>
-        </whitelist>
-    </filter>
-
     <listeners>
         <listener class="Symfony\Bridge\PhpUnit\SymfonyTestsListener"/>
     </listeners>