Fix: typo for sparse encoding processor factory [2.x] (#600)

* typo fix for sparse encoding processor factory

Signed-off-by: yuye-aws <[email protected]>

* update change log

Signed-off-by: yuye-aws <[email protected]>

---------

Signed-off-by: yuye-aws <[email protected]>

Author: yuye-aws

CHANGELOG.md

@@ -16,6 +16,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 ### Features
 ### Enhancements
 ### Bug Fixes
+Fix typo for sparse encoding processor factory([#600](https://github.com/opensearch-project/neural-search/pull/600))
 ### Infrastructure
 ### Documentation
 ### Maintenance

src/main/java/org/opensearch/neuralsearch/processor/factory/SparseEncodingProcessorFactory.java

@@ -40,8 +40,8 @@ public SparseEncodingProcessor create(
         Map<String, Object> config
     ) throws Exception {
         String modelId = readStringProperty(TYPE, processorTag, config, MODEL_ID_FIELD);
-        Map<String, Object> filedMap = readMap(TYPE, processorTag, config, FIELD_MAP_FIELD);
+        Map<String, Object> fieldMap = readMap(TYPE, processorTag, config, FIELD_MAP_FIELD);
 
-        return new SparseEncodingProcessor(processorTag, description, modelId, filedMap, clientAccessor, environment);
+        return new SparseEncodingProcessor(processorTag, description, modelId, fieldMap, clientAccessor, environment);
     }
 }