feat(workspaces): migrate slug to match the workspaceId (#3132)

packages/server/modules/workspacesCore/migrations/20240926112407_copy_workspace_slug.ts

@@ -0,0 +1,7 @@
+import { Knex } from 'knex'
+
+export async function up(knex: Knex): Promise<void> {
+  await knex.raw('update workspaces set slug = id')
+}
+
+export async function down(): Promise<void> {}