Fixup cassandra lint

Author: xrmx

tox.ini

@@ -581,6 +581,7 @@ deps =
   cassandra: {[testenv]test_deps}
   cassandra-driver: -r {toxinidir}/instrumentation/opentelemetry-instrumentation-cassandra/test-requirements.txt
   cassandra-scylla: -r {toxinidir}/instrumentation/opentelemetry-instrumentation-cassandra/test-requirements-scylla.txt
+  lint-instrumentation-cassandra: -r {toxinidir}/instrumentation/opentelemetry-instrumentation-cassandra/test-requirements.txt
 
   dbapi: {[testenv]test_deps}
   dbapi: -r {toxinidir}/instrumentation/opentelemetry-instrumentation-dbapi/test-requirements.txt