Update influxdata/influxdb-client-php

Author: gtjamesa

composer.json

@@ -7,7 +7,7 @@
         "graham-campbell/manager": "^4.6",
         "illuminate/contracts": "^8.0|^9.0",
         "illuminate/support": "^8.0|^9.0",
-        "influxdata/influxdb-client-php": "^1.11.0"
+        "influxdata/influxdb-client-php": "^2.6"
     },
     "require-dev": {
         "orchestra/testbench": "^6.13"