fix(redshift): validation error for Cluster.multi_az (#7381)

prowler/providers/aws/services/redshift/redshift_cluster_multi_az_enabled/redshift_cluster_multi_az_enabled.py

@@ -11,7 +11,7 @@ class redshift_cluster_multi_az_enabled(Check):
             report.status_extended = (
                 f"Redshift Cluster {cluster.id} does not have Multi-AZ enabled."
             )
-            if cluster.multi_az:
+            if cluster.multi_az == "Enabled":
                 report.status = "PASS"
                 report.status_extended = (
                     f"Redshift Cluster {cluster.id} has Multi-AZ enabled."

prowler/providers/aws/services/redshift/redshift_service.py

@@ -45,7 +45,7 @@ class Redshift(AWSService):
                                 "AllowVersionUpgrade", False
                             ),
                             encrypted=cluster.get("Encrypted", False),
-                            multi_az=cluster.get("MultiAZ", False),
+                            multi_az=cluster.get("MultiAZ", ""),
                             region=regional_client.region,
                             tags=cluster.get("Tags"),
                             master_username=cluster.get("MasterUsername", ""),
@@ -145,7 +145,7 @@ class Cluster(BaseModel):
     vpc_security_groups: list = []
     public_access: bool = False
     encrypted: bool = False
-    multi_az: bool = False
+    multi_az: str = None
     master_username: str = None
     database_name: str = None
     endpoint_address: str = None

tests/providers/aws/services/redshift/redshift_cluster_multi_az_enabled/redshift_cluster_multi_az_enabled_test.py

@@ -149,7 +149,7 @@ class Test_redshift_cluster_multi_az_enabled:
                     )
 
                     # Moto does not pass the multi_az parameter back.
-                    service_client.clusters[0].multi_az = 1
+                    service_client.clusters[0].multi_az = "Enabled"
                     check = redshift_cluster_multi_az_enabled()
                     result = check.execute()
 

tests/providers/aws/services/redshift/redshift_service_test.py

@@ -140,7 +140,8 @@ class Test_Redshift_Service:
         ]
         assert redshift.clusters[0].parameter_group_name == "default.redshift-1.0"
         assert redshift.clusters[0].encrypted
-        assert redshift.clusters[0].multi_az is False
+        # Moto does not pass the multi_az parameter back.
+        assert redshift.clusters[0].multi_az == ""
         assert redshift.clusters[0].master_username == "user"
         assert redshift.clusters[0].enhanced_vpc_routing
         assert redshift.clusters[0].database_name == "test"