fix: correct function for python version

Author: Addon Factory template

splunk_connect_for_snmp_mib_server/translator.py

@@ -353,7 +353,7 @@ def format_metric_data(self, var_bind):
         snmp_index = translated_oid.split(".")[-1]
         if snmp_index.isnumeric():
             metric_data["snmp_index"] = snmp_index
-            translated_oid = translated_oid.removesuffix(f".{snmp_index}")
+            translated_oid = translated_oid[: -len(f".{snmp_index}")]
         metric_data[
             "metric_name"
         ] = f'sc4snmp.{translated_oid.replace(".","_").replace("::", ".")}'