Fix tests

- Fix InstallerTest case
- Fix native function mocking
- Add returntype for Unit-Tests
- Fixing ExtendedPDO test troubles
- Fix wrong class inheritance path for DatabaseTestTrait.php
- Fix SyslogLogger Server Exception for PHP8
- Add user/contact to database.fixture.php
- Avoid invalid rollbacks for test setup in PHP8

tests/src/Console/AutomaticInstallationConsoleTest.php

@@ -76,7 +76,7 @@ class AutomaticInstallationConsoleTest extends ConsoleTest
 	 */
 	private $dice;
 
-	public function setUp()
+	public function setUp() : void
 	{
 		static::markTestSkipped('Needs class \'Installer\' as constructing argument for console tests');
 

tests/src/Console/ConfigConsoleTest.php

@@ -38,7 +38,7 @@ class ConfigConsoleTest extends ConsoleTest
 	/** @var IConfig|LegacyMockInterface|MockInterface */
 	private $configMock;
 
-	protected function setUp()
+	protected function setUp() : void
 	{
 		parent::setUp();
 

tests/src/Console/ConsoleTest.php

@@ -32,7 +32,7 @@ abstract class ConsoleTest extends MockedTest
 	 */
 	protected $consoleArgv = [ 'consoleTest.php' ];
 
-	protected function setUp()
+	protected function setUp() : void
 	{
 		parent::setUp();
 

tests/src/Console/LockConsoleTest.php

@@ -40,7 +40,7 @@ class LockConsoleTest extends ConsoleTest
 	 */
 	private $lockMock;
 
-	protected function setUp()
+	protected function setUp() : void
 	{
 		parent::setUp();
 

tests/src/Console/ServerBlockConsoleTest.php

@@ -42,7 +42,7 @@ class ServerBlockConsoleTest extends ConsoleTest
 	 */
 	private $configMock;
 
-	protected function setUp()
+	protected function setUp() : void
 	{
 		parent::setUp();