Support Guzzle 7

Commit lock file

Author: geekish

composer.json

@@ -20,7 +20,7 @@
         "ext-libxml": "*",
         "ext-SimpleXML": "*",
         "laminas/laminas-xml": "^1.0",
-        "guzzlehttp/guzzle": "~6.0",
+        "guzzlehttp/guzzle": "^6.0|^7.0",
         "kevinrob/guzzle-cache-middleware": "^2.1",
         "psr/log": "^1.0"
     },