CI and dependencies update

.travis.yml

@@ -38,7 +38,7 @@ before_script:
   - mkdir -p build/logs
 
 script:
-  - vendor/bin/phpunit --coverage-clover build/logs/clover.xml --exclude-group slow
+  - vendor/bin/phpunit --coverage-clover build/logs/clover.xml --exclude-group flaky
   - if [ "$psalm" = "yes" ]; then vendor/bin/psalm; fi
 
 after_script:

phpunit.xml.dist

@@ -1,31 +1,17 @@
 <?xml version="1.0" encoding="UTF-8"?>
-
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:noNamespaceSchemaLocation="./vendor/phpunit/phpunit/phpunit.xsd"
-         backupGlobals="false"
-         backupStaticAttributes="false"
-         bootstrap="vendor/autoload.php"
-         colors="true"
-         convertErrorsToExceptions="true"
-         convertNoticesToExceptions="true"
-         convertWarningsToExceptions="true"
-         executionOrder="defects"
-         processIsolation="false"
-         stopOnFailure="false"
->
-<testsuites>
-  <testsuite name="EmailValidator Test Suite">
-    <directory>./tests/EmailValidator</directory>
-    <exclude>./vendor/</exclude>
-  </testsuite>
-</testsuites>
-
-<filter>
-  <whitelist>
-    <directory>./src/</directory>
-      <exclude>
-        <directory suffix=".php">./src/Result/Reason</directory>
-      </exclude>
-  </whitelist>
-</filter>
-</phpunit>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd" backupGlobals="false" backupStaticAttributes="false" bootstrap="vendor/autoload.php" colors="true" convertErrorsToExceptions="true" convertNoticesToExceptions="true" convertWarningsToExceptions="true" executionOrder="defects" processIsolation="false" stopOnFailure="false">
+  <coverage>
+    <include>
+      <directory>./src/</directory>
+    </include>
+    <exclude>
+      <directory suffix=".php">./src/Result/Reason</directory>
+    </exclude>
+  </coverage>
+  <testsuites>
+    <testsuite name="EmailValidator Test Suite">
+      <directory>./tests/EmailValidator</directory>
+      <exclude>./vendor/</exclude>
+    </testsuite>
+  </testsuites>
+</phpunit>

tests/EmailValidator/Validation/DNSCheckValidationTest.php

@@ -109,7 +109,7 @@ class DNSCheckValidationTest extends TestCase
     }
 
     /**
-     * @group slow
+     * @group flaky
      */
     public function testUnableToGetDNSRecord()
     {