Fixing format issue for not_exists

Author: Samiul-TheSoccerFan

rest-api-spec/src/yamlRestTest/resources/rest-api-spec/test/search.vectors/41_knn_search_bbq_hnsw.yml

@@ -572,8 +572,8 @@ setup:
 ---
 "default oversample value":
   - requires:
-        cluster_features: ["mapper.dense_vector.default_oversample_value_for_bbq"]
-        reason: "Needs default_oversample_value_for_bbq feature"
+      cluster_features: ["mapper.dense_vector.default_oversample_value_for_bbq"]
+      reason: "Needs default_oversample_value_for_bbq feature"
   - do:
       indices.get_mapping:
         index: bbq_hnsw

rest-api-spec/src/yamlRestTest/resources/rest-api-spec/test/search.vectors/42_knn_search_int4_flat.yml

@@ -505,4 +505,4 @@ setup:
       indices.get_mapping:
         index: int4_flat
 
-  - not_exists: { int4_flat.mappings.properties.vector.index_options.rescore_vector }
+  - not_exists: int4_flat.mappings.properties.vector.index_options.rescore_vector

rest-api-spec/src/yamlRestTest/resources/rest-api-spec/test/search.vectors/42_knn_search_int8_flat.yml

@@ -446,4 +446,4 @@ setup:
       indices.get_mapping:
         index: int8_flat
 
-  - not_exists: { int8_flat.mappings.properties.vector.index_options.rescore_vector }
+  - not_exists: int8_flat.mappings.properties.vector.index_options.rescore_vector