Add Sev0 as a supported incident severity (#2854)

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

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

.apigentools-info

@@ -4,13 +4,13 @@
     "spec_versions": {
         "v1": {
             "apigentools_version": "1.6.6",
-            "regenerated": "2025-05-07 21:20:01.108252",
-            "spec_repo_commit": "ba8b66cb"
+            "regenerated": "2025-05-08 14:34:53.877121",
+            "spec_repo_commit": "4b632dba"
         },
         "v2": {
             "apigentools_version": "1.6.6",
-            "regenerated": "2025-05-07 21:20:01.142865",
-            "spec_repo_commit": "ba8b66cb"
+            "regenerated": "2025-05-08 14:34:53.893015",
+            "spec_repo_commit": "4b632dba"
         }
     }
 }

.generator/schemas/v2/openapi.yaml

@@ -17390,6 +17390,7 @@ components:
       description: The incident severity.
       enum:
       - UNKNOWN
+      - SEV-0
       - SEV-1
       - SEV-2
       - SEV-3
@@ -17399,6 +17400,7 @@ components:
       type: string
       x-enum-varnames:
       - UNKNOWN
+      - SEV_0
       - SEV_1
       - SEV_2
       - SEV_3

src/main/java/com/datadog/api/client/v2/model/IncidentSeverity.java

@@ -23,9 +23,11 @@
 public class IncidentSeverity extends ModelEnum<String> {
 
   private static final Set<String> allowedValues =
-      new HashSet<String>(Arrays.asList("UNKNOWN", "SEV-1", "SEV-2", "SEV-3", "SEV-4", "SEV-5"));
+      new HashSet<String>(
+          Arrays.asList("UNKNOWN", "SEV-0", "SEV-1", "SEV-2", "SEV-3", "SEV-4", "SEV-5"));
 
   public static final IncidentSeverity UNKNOWN = new IncidentSeverity("UNKNOWN");
+  public static final IncidentSeverity SEV_0 = new IncidentSeverity("SEV-0");
   public static final IncidentSeverity SEV_1 = new IncidentSeverity("SEV-1");
   public static final IncidentSeverity SEV_2 = new IncidentSeverity("SEV-2");
   public static final IncidentSeverity SEV_3 = new IncidentSeverity("SEV-3");