Fix Gel query parent BaseNode shapes

These are functionally equivalent (named tuples v free objects).
And this is currently easier for TS/ Gel QB to express

Author: CarsonF

src/components/engagement/engagement.gel.repository.ts

@@ -25,10 +25,10 @@ const baseHydrate = e.shape(e.Engagement, (engagement) => ({
     step: true,
     type: true,
   },
-  parent: e.tuple({
+  parent: e.select({
     identity: engagement.project.id,
     labels: e.array_agg(e.set(engagement.project.__type__.name.slice(9, null))),
-    properties: e.tuple({
+    properties: e.select({
       id: engagement.project.id,
       createdAt: engagement.project.createdAt,
     }),

src/components/partnership/partnership.gel.repository.ts

@@ -15,12 +15,12 @@ export class PartnershipGelRepository
       partner: true,
       mou: true,
       agreement: true,
-      parent: e.tuple({
+      parent: e.select({
         identity: partnership.project.id,
         labels: e.array_agg(
           e.set(partnership.project.__type__.name.slice(9, null)),
         ),
-        properties: e.tuple({
+        properties: e.select({
           id: partnership.project.id,
           createdAt: partnership.project.createdAt,
         }),