fix: use correct HTTPFutureResponseStatus in indexExists() catch clause

Phase 0 CodeRabbit caught a typo — HTTPFutureHTTPResponseStatus does not
exist in the libphutil type hierarchy; the correct class is
HTTPFutureResponseStatus (consistent with line 257 in executeRequest()).

🤖 Generated by [robots](https://vyos.io)

1 files changed, 1 insertions, 1 deletions

diff --git a/src/engine/VyOSElasticModernFulltextStorageEngine.php b/src/engine/VyOSElasticModernFulltextStorageEngine.php
index 70844f9..4c14ce0 100644
--- a/src/engine/VyOSElasticModernFulltextStorageEngine.php
+++ b/src/engine/VyOSElasticModernFulltextStorageEngine.php
@@ -436,7 +436,7 @@ abstract class VyOSElasticModernFulltextStorageEngine
     try {
       $res = $this->executeRequest($host, '/_stats/', array());
       return isset($res['indices'][$this->index]);
-    } catch (HTTPFutureHTTPResponseStatus $e) {
+    } catch (HTTPFutureResponseStatus $e) {
       if ($e->getStatusCode() == 404) {
         return false;
       }