Update eslint and nyc

package.json

@@ -42,8 +42,8 @@
     "esbuild-demo-watch": "node bin/esbuild.mjs --demo-client --watch",
     "test": "npm run test-unit",
     "posttest": "npm run lint",
-    "lint": "eslint -c .eslintrc.json --max-warnings 0 --ext .ts src/ addons/",
-    "lint-fix": "eslint -c .eslintrc.json --fix --ext .ts src/ addons/",
+    "lint": "eslint --max-warnings 0 src/ addons/",
+    "lint-fix": "eslint --fix src/ addons/",
     "lint-api": "eslint --no-eslintrc -c .eslintrc.json.typings --max-warnings 0 --no-ignore --ext .d.ts typings/",
     "test-unit": "node ./bin/test_unit.js",
     "test-unit-coverage": "node ./bin/test_unit.js --coverage",
@@ -69,7 +69,7 @@
   "devDependencies": {
     "@lunapaint/png-codec": "^0.2.0",
     "@playwright/test": "^1.37.1",
-    "@stylistic/eslint-plugin": "^2.3.0",
+    "@stylistic/eslint-plugin": "^4.4.1",
     "@types/chai": "^4.2.22",
     "@types/debug": "^4.1.7",
     "@types/deep-equal": "^1.0.1",
@@ -82,25 +82,26 @@
     "@types/utf8": "^3.0.0",
     "@types/webpack": "^5.28.0",
     "@types/ws": "^8.2.0",
-    "@typescript-eslint/eslint-plugin": "^6.2.00",
-    "@typescript-eslint/parser": "^6.2.00",
+    "@typescript-eslint/eslint-plugin": "^8.50.1",
+    "@typescript-eslint/parser": "^8.50.1",
     "chai": "^4.3.4",
     "cross-env": "^7.0.3",
     "deep-equal": "^2.0.5",
     "esbuild": "~0.25.2",
-    "eslint": "^8.56.0",
-    "eslint-plugin-jsdoc": "^46.9.1",
+    "eslint": "^9.39.2",
+    "eslint-plugin-jsdoc": "^50.8.0",
     "express": "^4.19.2",
     "express-ws": "^5.0.2",
     "jsdom": "^18.0.1",
     "mocha": "^10.1.0",
     "mustache": "^4.2.0",
     "node-pty": "1.1.0-beta19",
-    "nyc": "^15.1.0",
+    "nyc": "^17.1.0",
     "source-map-loader": "^3.0.0",
     "source-map-support": "^0.5.20",
     "ts-loader": "^9.3.1",
     "typescript": "5.5",
+    "typescript-eslint": "^8.50.1",
     "utf8": "^3.0.0",
     "webpack": "^5.61.0",
     "webpack-cli": "^4.9.1",