Stop modifying parent operation span after it is stopped

When a getMore command arrived, the cursor_id was being set on the
parent operation span's MongodbContext even though the parent observation
was already stopped. Modifying an observation after stop() is undefined
behavior in Micrometer

Author: nhachicha

driver-core/src/main/com/mongodb/internal/observability/micrometer/TracingManager.java

@@ -223,11 +223,6 @@ public Span createTracingSpan(final CommandMessage message,
             if (command.containsKey("getMore")) {
                 long cursorId = command.getInt64("getMore").longValue();
                 mongodbContext.setCursorId(cursorId);
-                // Also set on parent operation span context for correlation
-                MongodbContext parentContext = operationSpan != null ? operationSpan.getMongodbContext() : null;
-                if (parentContext != null) {
-                    parentContext.setCursorId(cursorId);
-                }
             }
 
             SessionContext sessionContext = operationContext.getSessionContext();