Fix deployer LRN field in project

packages/backend/src/entity/Project.ts

@@ -49,7 +49,7 @@ export class Project {
   @Column('varchar', { nullable: true })
     auctionId?: string | null;
 
-  @Column('varchar', { nullable: true })
+  @Column({ type: 'simple-array', nullable: true })
     deployerLrn?: string[] | null;
 
   // TODO: Compute template & framework in import repository

packages/backend/src/service.ts

@@ -718,7 +718,7 @@ export class Service {
     const applicationRecordId = record.id;
     const applicationRecordData = record.attributes;
 
-    for (const deployer in deployerLrns) {
+    for (const deployer of deployerLrns) {
       // Create deployment with prod branch and latest commit
       const deploymentData = {
         project,