Merge branch 'fix/freeworkshop-notempty' into 'dev'

fix: change freeWorkshop back to notempty

See merge request web-et-numerique/pamn_plateforme-des-acteurs-de-la-mediation-numerique/pamn_server!72

src/structures/dto/structure.dto.ts

@@ -46,6 +46,7 @@ export class structureDto {
 
   @ArrayNotEmpty()
   publics: string[];
+  @IsNotEmpty()
   freeWorkShop: boolean;
   @IsNotEmpty()
   nbComputers: number;