Capture all marker attributes in structured args

This commit mirrors this recent change in OpenTelemetry Java
instrumentation of Logback :
open-telemetry/opentelemetry-java-instrumentation#15341

Author: steffan-westcott

clj-otel-adapter-logback/src/steffan_westcott/clj_otel/adapter/logback.clj

@@ -233,9 +233,7 @@
 
            (and supports-logstash-StructuredArgument?
                 (.-captureLogstashStructuredArguments appender))
-           (util/into! (comp (filter instance-SingleFieldAppendingMarker?)
-                             (keep logstash-single-field-attr))
-                       (.getArgumentArray event))))
+           (util/into! (logstash-marker-attrs (.getArgumentArray event)))))
 
         event-name (when (.-captureEventName appender)
                      (get attributes "event.name"))