[HeiseBridge] remove newlines/double figcaption

Affected article: https://www.heise.de/tests/Windrose-Spassiger-Jack-Sparrow-Simulator-fuer-kleines-Geld-11263221.html

Co-autored-by: Tone866 <66808319+Tone866@users.noreply.github.com>

Author: Mynacol

bridges/HeiseBridge.php

@@ -221,6 +221,13 @@ private function addArticleToItem($item, $article)
                 }
             }
         }
+
+        // strip p tags inside of figcaption to avoid doubling it
+        foreach ($article->find('figcaption p') as $key => $elem) {
+            $elem->outertext = $elem->plaintext;
+            $reloadneeded = 1;
+        }
+
         if (isset($reloadneeded)) {
             $article = str_get_html($article->outertext);
         }