Fix tests on node 22

Author: brophdawg11

packages/router/__tests__/navigation-test.ts

@@ -175,7 +175,7 @@ describe("navigations", () => {
         process.version.startsWith("v16") || process.version.startsWith("v18")
           ? "Unexpected token } in JSON at position 15"
           : "Unexpected non-whitespace character after JSON at position 15";
-      expect(t.router.state.errors?.foo).toEqual(new SyntaxError(expected));
+      expect(t.router.state.errors?.foo.message).toContain(expected);
     });
 
     it("bubbles errors when unwrapping Responses", async () => {
@@ -212,7 +212,7 @@ describe("navigations", () => {
         process.version.startsWith("v16") || process.version.startsWith("v18")
           ? "Unexpected token } in JSON at position 15"
           : "Unexpected non-whitespace character after JSON at position 15";
-      expect(t.router.state.errors?.root).toEqual(new SyntaxError(expected));
+      expect(t.router.state.errors?.root.message).toContain(expected);
     });
 
     it("does not fetch unchanging layout data", async () => {