test(version-check): Fix flaky test

Signed-off-by: Joas Schilling <coding@schilljs.com>

tests/lib/Updater/VersionCheckTest.php

@@ -66,6 +66,7 @@ class VersionCheckTest extends \Test\TestCase {
 	}
 
 	public function testCheckInCache(): void {
+		$time = time();
 		$expectedResult = [
 			'version' => '8.0.4.2',
 			'versionstring' => 'ownCloud 8.0.4',
@@ -83,7 +84,7 @@ class VersionCheckTest extends \Test\TestCase {
 			->expects($this->once())
 			->method('getValueInt')
 			->with('core', 'lastupdatedat')
-			->willReturn(time());
+			->willReturn($time);
 		$this->config
 			->expects($this->once())
 			->method('getAppValue')
@@ -284,7 +285,7 @@ class VersionCheckTest extends \Test\TestCase {
 			->with('core', 'lastupdatedat')
 			->willReturnOnConsecutiveCalls(
 				0,
-				time(),
+				$lastUpdateDate,
 			);
 		$this->config
 			->expects($this->exactly(2))
@@ -299,7 +300,7 @@ class VersionCheckTest extends \Test\TestCase {
 		$this->appConfig
 			->expects($this->once())
 			->method('setValueInt')
-			->with('core', 'lastupdatedat', time());
+			->with('core', 'lastupdatedat', $lastUpdateDate);
 		$this->config
 			->expects($this->once())
 			->method('setAppValue')