Fixup incorrect import

The `DataRewrite.ts` file was mistakenly importing the wrong `assert`
method: it was importing the one from `console`, when it was meant to
import the one from `@apollo/federation-internals` (as used everywhere
else). This commit fixes that issue.

.changeset/fifty-snakes-nail.md

@@ -0,0 +1,7 @@
+---
+"@apollo/gateway": patch
+---
+
+Fix incorrect import the `assert` function in the `DataRewrite.ts`. The incorrect method was imported (due to a bad
+import auto-completion) and went unnoticed, leading to potential build issue.
+

gateway-js/src/dataRewrites.ts

@@ -1,5 +1,5 @@
 import { FetchDataRewrite } from "@apollo/query-planner";
-import { assert } from "console";
+import { assert } from "@apollo/federation-internals";
 import { GraphQLSchema, isAbstractType, isInterfaceType, isObjectType } from "graphql";
 
 const FRAGMENT_PREFIX = '... on ';