Update body-end.html (prebid#6263)

* Update body-end.html

* Use Zach's search api key

Author: muuki88

_includes/body-end.html

@@ -1,6 +1,6 @@
 <script src="https://cdn.jsdelivr.net/npm/@docsearch/js@3"></script>
 <script type="text/javascript"> docsearch({
-  apiKey: '6f0eda209a805cfa66b415043ab5fbfc',
+  apiKey: '7777b1f98e980527606d00e705ff3d6f',
   appId: 'FN26QH8JE9',
   indexName: 'prebid',
   container: '.pb-header .c-search',