chore: small tsdoc update to dml float property. (#10576)

packages/core/utils/src/dml/entity-builder.ts

@@ -254,6 +254,12 @@ export class EntityBuilder {
    * This method defines a float property that allows for
    * values with decimal places
    * 
+   * :::note
+   * 
+   * This property is only available after Medusa v2.1.2.
+   * 
+   * :::
+   *
    * @example
    * import { model } from "@medusajs/framework/utils"
    *