Changed members export to contain tiers

refs https://github.com/TryGhost/Team/issues/1076

- The "products" is a legacy term for what is now "tiers" since multiple tiers feature introduction in https://github.com/TryGhost/Ghost/releases/tag/v4.39.0
- Note, the "tiers" is a field meant for informational purposes and cannot be imported back into Ghost site.

Author: naz

packages/members-csv/lib/unparse.js

@@ -11,7 +11,7 @@ const DEFAULT_COLUMNS = [
     'created_at',
     'deleted_at',
     'labels',
-    'products'
+    'tiers'
 ];
 
 const unparse = (members, columns = DEFAULT_COLUMNS.slice()) => {
@@ -54,7 +54,7 @@ const unparse = (members, columns = DEFAULT_COLUMNS.slice()) => {
             created_at: member.created_at,
             deleted_at: member.deleted_at,
             labels: labels,
-            products: tiers,
+            tiers: tiers,
             error: member.error || null
         };
     });

packages/members-csv/test/unparse.test.js

@@ -13,7 +13,7 @@ describe('unparse', function () {
 
         assert.ok(result);
 
-        const expected = `id,email,name,note,subscribed_to_emails,complimentary_plan,stripe_customer_id,created_at,deleted_at,labels,products\r\n,[email protected],Sam Memberino,Early supporter,,,,,,,`;
+        const expected = `id,email,name,note,subscribed_to_emails,complimentary_plan,stripe_customer_id,created_at,deleted_at,labels,tiers\r\n,[email protected],Sam Memberino,Early supporter,,,,,,,`;
         assert.equal(result, expected);
     });
 
@@ -96,11 +96,11 @@ [email protected],"banana, avocado"`;
         }];
 
         const columns = [
-            'email', 'products'
+            'email', 'tiers'
         ];
 
         const result = unparse(json, columns);
-        const expected = `email,products\r\[email protected],Bronze Level`;
+        const expected = `email,tiers\r\[email protected],Bronze Level`;
         assert.equal(result, expected);
     });
 });