Change: pin paho-mqtt version < 2.0 (#970)

#968
eclipse-paho/paho.mqtt.python#814
Jira: SC-1027

Author: jjnicola

pyproject.toml

@@ -50,7 +50,8 @@ packaging = ">=20.4,<24.0"
 lxml = ">=4.5.2,<6.0.0"
 defusedxml = ">=0.6,<0.8"
 deprecated = "^1.2.10"
-paho-mqtt = ">=1.5.1"
+# use v1.x due to https://github.com/eclipse/paho.mqtt.python/issues/814
+paho-mqtt = "^1.6"
 python-gnupg = ">=0.4.8,<0.6.0"
 
 [tool.poetry.dev-dependencies]