Upgrade mitoteam/jpgraph

They have made a change at our request to help us eliminate runInSeparateProcess for one or more tests. This will be helpful when we get to PhpUnit 11 (not imminent, since it doesn't support Php8.1, but it will happen eventually).

Author: oleibman

composer.lock

@@ -34,7 +34,6 @@ public function writeCharts(XlsxWriter $writer): void
         $writer->setIncludeCharts(true);
     }
 
-    #[\PHPUnit\Framework\Attributes\RunInSeparateProcess]
     public function testDynamicTitle(): void
     {
         // based on samples/templates/issue.3797.2007.xlsx