test: fix ngcc unit tests in windows (#30297)

```
//packages/compiler-cli/ngcc/test:test
```

Partially addresses #29785

PR Close #30297

packages/compiler-cli/ngcc/test/dependencies/esm_dependency_host_spec.ts

@@ -70,7 +70,7 @@ describe('DependencyHost', () => {
       expect(dependencies.size).toBe(0);
       expect(missing.size).toBe(0);
       expect(deepImports.size).toBe(1);
-      expect(deepImports.has('/node_modules/lib-1/deep/import')).toBe(true);
+      expect(deepImports.has(_('/node_modules/lib-1/deep/import'))).toBe(true);
     });
 
     it('should recurse into internal dependencies', () => {