Makes deletion_protection_enabled actually optional

Author: gdavison

internal/service/dsql/cluster.go

@@ -19,6 +19,7 @@ import (
 	"github.com/hashicorp/terraform-plugin-framework/path"
 	"github.com/hashicorp/terraform-plugin-framework/resource"
 	"github.com/hashicorp/terraform-plugin-framework/resource/schema"
+	"github.com/hashicorp/terraform-plugin-framework/resource/schema/booldefault"
 	"github.com/hashicorp/terraform-plugin-framework/resource/schema/planmodifier"
 	"github.com/hashicorp/terraform-plugin-framework/resource/schema/setplanmodifier"
 	"github.com/hashicorp/terraform-plugin-framework/resource/schema/stringplanmodifier"
@@ -65,6 +66,8 @@ func (r *clusterResource) Schema(ctx context.Context, request resource.SchemaReq
 			names.AttrARN: framework.ARNAttributeComputedOnly(),
 			"deletion_protection_enabled": schema.BoolAttribute{
 				Optional: true,
+				Computed: true,
+				Default:  booldefault.StaticBool(false),
 			},
 			"encryption_details": framework.ResourceComputedListOfObjectsAttribute[encryptionDetailsModel](ctx),
 			names.AttrIdentifier: framework.IDAttribute(),