test(go): assert unresolved MZ candidate boundary

tests/boundary/go/goBinaryImage.test.ts

@@ -359,7 +359,9 @@ it("distinguishes unsupported containers from malformed recognized images", () =
   );
   const pe = createGoBinaryFixture({ format: "pe" });
   pe.bytes.writeUInt32LE(0xfffffff0, 60);
-  expect(() => readGoBinaryImage(pe.bytes)).toThrowError(/range|truncated/i);
+  expect(() => readGoBinaryImage(pe.bytes)).toThrowError(
+    /MZ Windows new-header candidate is unresolved/i,
+  );
 });
 
 it("reports JVM class files as unsupported images instead of fat Mach-O containers", () => {