Modified tox.ini to fix the comment line (#1588)

Author: pridhi-arora

tox.ini

@@ -208,7 +208,7 @@ envlist =
     pypy3-test-instrumentation-kafka-python
 
     ; opentelemetry-instrumentation-confluent-kafka
-    // FIXME: Enable support for python 3.11 when https://github.com/confluentinc/confluent-kafka-python/issues/1452 is fixed
+    ; // FIXME: Enable support for python 3.11 when https://github.com/confluentinc/confluent-kafka-python/issues/1452 is fixed
     py3{7,8,9,10}-test-instrumentation-confluent-kafka
 
     lint