kafkareceiver: migrate to latest semconv version (open-telemetry#35240)

Description: The version of semconv is upgraded from to v1.6.1 to
v1.27.0

Link to tracking Issue:
open-telemetry#22095

Testing: Tests passed

receiver/kafkareceiver/zipkin_unmarshaler_test.go

@@ -15,7 +15,7 @@ import (
 	"github.com/stretchr/testify/require"
 	"go.opentelemetry.io/collector/pdata/pcommon"
 	"go.opentelemetry.io/collector/pdata/ptrace"
-	conventions "go.opentelemetry.io/collector/semconv/v1.6.1"
+	conventions "go.opentelemetry.io/collector/semconv/v1.27.0"
 
 	"github.com/open-telemetry/opentelemetry-collector-contrib/pkg/translator/zipkin/zipkinv2"
 )