Skip the CommonJS variants if using GraphQL 17

GraphQL 17 will only be bundled in ESM mode

packages/load/tests/use-custom-loader.node.mjs

@@ -1,15 +1,18 @@
 import assert from 'node:assert';
 import { describe, it } from 'node:test';
+import { versionInfo as graphqlVersionInfo } from 'graphql';
 import { useCustomLoader, useCustomLoaderSync } from '../src/utils/custom-loader.ts';
 
 describe('useCustomLoader', () => {
-  it('can load a custom cjs loader from a file path', async () => {
+  const skipCjsTests = graphqlVersionInfo.major >= 17;
+
+  it('can load a custom cjs loader from a file path', { skip: skipCjsTests }, async () => {
     const loader = await useCustomLoader(`./custom-loader.cjs`, import.meta.dirname);
     const result = await loader('some-name', { customLoaderContext: {} });
     assert.strictEqual(result, 'I like turtles');
   });
 
-  it('can load a custom cjs loader synchronously', async () => {
+  it('can load a custom cjs loader synchronously', { skip: skipCjsTests }, async () => {
     const loader = useCustomLoaderSync(`./custom-loader.cjs`, import.meta.dirname);
     const result = await loader('some-name', { customLoaderContext: {} });
     assert.strictEqual(result, 'I like turtles');