update assertion for newer phpunit

Author: splitbrain

skel/_test/GeneralTest.php

@@ -31,9 +31,9 @@ public function testPluginInfo(): void
         $this->assertArrayHasKey('url', $info);
 
         $this->assertEquals('@@PLUGIN_NAME@@', $info['base']);
-        $this->assertRegExp('/^https?:\/\//', $info['url']);
+        $this->assertMatchesRegularExpression('/^https?:\/\//', $info['url']);
         $this->assertTrue(mail_isvalid($info['email']));
-        $this->assertRegExp('/^\d\d\d\d-\d\d-\d\d$/', $info['date']);
+        $this->assertMatchesRegularExpression('/^\d\d\d\d-\d\d-\d\d$/', $info['date']);
         $this->assertTrue(false !== strtotime($info['date']));
     }