TCPDF doesn't support PHP 8.0, skip test

Author: liborm85

tests/PhpWord/Writer/PDF/TCPDFTest.php

@@ -39,6 +39,12 @@ public function testConstruct()
             return;
         }
 
+        // TCPDF version 6.3.5 doesn't support PHP 8.0, fixed via https://github.com/tecnickcom/TCPDF/pull/293,
+        // pending new release.
+        if (version_compare(PHP_VERSION, '8.0.0', '>=')) {
+            return;
+        }
+
         $file = __DIR__ . '/../../_files/tcpdf.pdf';
 
         $phpWord = new PhpWord();