#1391: modify patch schema to specify either object or array

We don't provide many patch endpoints, so we _could_ create separate
patch operation objects for each one. I think that makes sense to do
as part of the larger cleanup. For now, I think it's worth to simply
turn it into one of these. While it's not entirely accurate, it's
better than what we had before.

src/lib/openapi/spec/patch-schema.ts

@@ -15,7 +15,14 @@ export const patchSchema = {
         from: {
             type: 'string',
         },
-        value: {},
+        value: {
+            oneOf: [
+                {
+                    type: 'object',
+                },
+                { type: 'array', items: { type: 'object' } },
+            ],
+        },
     },
     components: {},
 } as const;