mark apm_resource_stats query is deprecated (#4067)

Co-authored-by: ci.datadog-api-spec <packages@datadoghq.com>

Author: api-clients-generation-pipeline[bot]

.generator/schemas/v1/openapi.yaml

@@ -3006,7 +3006,8 @@ components:
       x-enum-varnames:
         - APM_RESOURCE_STATS
     FormulaAndFunctionApmResourceStatsQueryDefinition:
-      description: APM resource stats query using formulas and functions.
+      deprecated: true
+      description: APM resource stats query using formulas and functions. Deprecated - Use `apm_metrics` query type instead.
       properties:
         cross_org_uuids:
           $ref: "#/components/schemas/CrossOrgUuids"

api/datadogV1/model_formula_and_function_apm_resource_stats_query_definition.go

@@ -10,7 +10,9 @@ import (
 	"github.com/DataDog/datadog-api-client-go/v2/api/datadog"
 )
 
-// FormulaAndFunctionApmResourceStatsQueryDefinition APM resource stats query using formulas and functions.
+// FormulaAndFunctionApmResourceStatsQueryDefinition APM resource stats query using formulas and functions. Deprecated - Use `apm_metrics` query type instead.
+//
+// Deprecated: This model is deprecated.
 type FormulaAndFunctionApmResourceStatsQueryDefinition struct {
 	// The source organization UUID for cross organization queries. Feature in Private Beta.
 	CrossOrgUuids []string `json:"cross_org_uuids,omitempty"`