feat: Add custom_attributes field to OrganizationMembership (#306)

Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>
Co-authored-by: Matt Dzwonczyk <9063128+mattgd@users.noreply.github.com>
Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>

Author: 4 people

src/main/kotlin/com/workos/usermanagement/models/OrganizationMembership.kt

@@ -5,7 +5,7 @@ import com.fasterxml.jackson.annotation.JsonProperty
 import com.workos.usermanagement.types.OrganizationMembershipStatusEnumType
 
 /**
- * An organization membership is a top-level resource that represents a [User]’s relationship
+ * An organization membership is a top-level resource that represents a [User]'s relationship
  * with an organization. A user may be a member of zero, one, or many organizations.
  *
  * @param id The unique ID of the organization membership.
@@ -16,6 +16,7 @@ import com.workos.usermanagement.types.OrganizationMembershipStatusEnumType
  * @param status Whether the organization membership is active or pending (see enum values in [OrganizationMembershipStatusEnumType]).
  * @param createdAt The timestamp when the user was created.
  * @param updatedAt The timestamp when the user was last updated.
+ * @param customAttributes Custom attributes from the identity provider.
  */
 data class OrganizationMembership @JsonCreator constructor(
   @JsonProperty("id")
@@ -40,5 +41,8 @@ data class OrganizationMembership @JsonCreator constructor(
  val createdAt: String,
 
   @JsonProperty("updated_at")
- val updatedAt: String
+ val updatedAt: String,
+
+  @JsonProperty("custom_attributes")
+ val customAttributes: Map<String, Any> = emptyMap()
 )