Update helperlib to version 1.0.19 (#20742)

Signed-off-by: Holger Hees <holger.hees@gmail.com>

Author: HolgerHees

bundles/org.openhab.automation.pythonscripting/pom.xml

@@ -15,7 +15,7 @@
   <name>openHAB Add-ons :: Bundles :: Automation :: Python Scripting</name>
 
   <properties>
-    <helperlib.version>1.0.18</helperlib.version>
+    <helperlib.version>1.0.19</helperlib.version>
   </properties>
 
   <dependencies>