Address new lint warning about logging an object

error 'dom' will use Object's default stringification format ('[object Object]') when stringified

hello-world/package.json

@@ -30,7 +30,7 @@
       "assert-deep-strict-equal": "~1.2",
       "fetch-json": "~3.3",
       "jshint": "~2.13",
-      "mocha": "~10.7",
+      "mocha": "~11.0",
       "server-listening": "~1.2"
    }
 }

package.json

@@ -64,25 +64,25 @@
    "dependencies": {
       "express": "~4.21",
       "http-terminator": "~3.2",
-      "jsdom": "~25.0"
+      "jsdom": "~26.0"
    },
    "devDependencies": {
-      "@eslint/js": "~9.11",
+      "@eslint/js": "~9.17",
       "@types/express": "~5.0",
       "@types/jsdom": "~21.1",
-      "@types/node": "~22.7",
+      "@types/node": "~22.10",
       "add-dist-header": "~1.4",
       "assert-deep-strict-equal": "~1.2",
       "copy-file-util": "~1.2",
       "copy-folder-util": "~1.1",
-      "eslint": "~9.11",
+      "eslint": "~9.17",
       "fetch-json": "~3.3",
       "jshint": "~2.13",
-      "mocha": "~10.7",
+      "mocha": "~11.0",
       "rimraf": "~6.0",
       "run-scripts-util": "~1.3",
-      "typescript": "~5.6",
-      "typescript-eslint": "~8.7",
+      "typescript": "~5.7",
+      "typescript-eslint": "~8.19",
       "w3c-html-validator": "~1.8"
    }
 }

server-listening.ts

@@ -57,7 +57,7 @@ const serverListening = {
    jsdomOnLoad(dom: JSDOM): Promise<JSDOM> {
       const name = (<unknown>dom)?.constructor?.name;
       if (name !== 'JSDOM')
-         throw new Error(`[server-listening] Unable to load DOM: ${String(dom)} => ${name}`);
+         throw new Error(`[server-listening] Unable to load DOM: ${String(<unknown>dom)} => ${name}`);
       let done: (jsdom: JSDOM) => void;
       dom.window.onload = () => done(dom);
       return new Promise(resolve => done = resolve);