Correct linux suffix this time

Author: dimitris-athanasiou

x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/action/TransportInferenceUsageAction.java

@@ -233,7 +233,7 @@ private static Map<String, List<InferenceFieldMetadata>> filterFields(
     private record DefaultModelStatsKey(String service, TaskType taskType, String modelId) {
 
         // Some of the default models have optimized variants for linux that will have the following suffix.
-        private static final String MODEL_ID_LINUX_SUFFIX = "-x86_64";
+        private static final String MODEL_ID_LINUX_SUFFIX = "_linux-x86_64";
 
         @Override
         public String toString() {

x-pack/plugin/inference/src/test/java/org/elasticsearch/xpack/inference/action/TransportInferenceUsageActionTests.java

@@ -222,8 +222,8 @@ public void testGivenServices_SemanticTextFieldsDefaultModels() throws Exception
 
     public void testGivenDefaultModelWithLinuxSuffix() throws Exception {
         givenInferenceEndpoints(
-            new ModelConfigurations(".endpoint-001", TaskType.TEXT_EMBEDDING, "eis", mockServiceSettings(".model-id-001-x86_64")),
-            new ModelConfigurations("endpoint-002", TaskType.TEXT_EMBEDDING, "eis", mockServiceSettings(".model-id-001-x86_64"))
+            new ModelConfigurations(".endpoint-001", TaskType.TEXT_EMBEDDING, "eis", mockServiceSettings(".model-id-001_linux-x86_64")),
+            new ModelConfigurations("endpoint-002", TaskType.TEXT_EMBEDDING, "eis", mockServiceSettings(".model-id-001_linux-x86_64"))
         );
 
         givenDefaultEndpoints(".endpoint-001");