Mark EnablePostGISMigrationError as Sendable

Author: fpseverino

README.md

@@ -41,7 +41,7 @@ app.migrations.add(EnablePostGISMigration())
 Add a type to your model
 
 ```swift
-final class User: Model {
+final class User: Model, @unchecked Sendable {
     static let schema = "user"
 
     @ID(key: .id)

Sources/FluentPostGIS/Support/EnablePostGISMigration.swift

@@ -4,7 +4,7 @@ import SQLKit
 public struct EnablePostGISMigration: AsyncMigration, Sendable {
     public init() {}
 
-    public enum EnablePostGISMigrationError: Error {
+    public enum EnablePostGISMigrationError: Error, Sendable {
         case notSqlDatabase
     }