Switch from @tsconfig/ember -> @ember/*-tsconfig

Author: NullVoxPopuli

addon/package.json

@@ -59,10 +59,10 @@
     "@babel/core": "^7.25.2",
     "@babel/plugin-transform-typescript": "^7.25.2",
     "@babel/runtime": "^7.24.4",
+    "@ember/library-tsconfig": "^2.0.0",
     "@embroider/addon-dev": "^5.0.0",
     "@glint/template": "^1.4.0",
     "@rollup/plugin-babel": "^6.0.4",
-    "@tsconfig/ember": "^3.0.6",
     "@types/rsvp": "^4.0.9",
     "@typescript-eslint/eslint-plugin": "^8.2.0",
     "@typescript-eslint/parser": "^8.2.0",

addon/pnpm-lock.yaml

@@ -1,5 +1,5 @@
 {
-  "extends": "@tsconfig/ember/tsconfig.json",
+  "extends": "@ember/library-tsconfig",
   "include": [
     "src/**/*",
     "unpublished-development-types/**/*"

addon/tsconfig.json

@@ -8,8 +8,8 @@
     "extends": "../package.json"
   },
   "devDependencies": {
+    "@ember/app-tsconfig": "^2.0.0",
     "@ember/test-helpers": "workspace:*",
-    "@tsconfig/ember": "^2.0.0",
     "@types/rsvp": "^4.0.9",
     "dom-element-descriptors": "^0.5.0",
     "ember-source": "~5.9.0",

type-tests/package.json

@@ -1,7 +1,5 @@
 {
-    // Required to Support TS < v5
-    // We can't upgrade @tsconfig ember until we only support TS v5+
-  "extends": "@tsconfig/ember",
+  "extends": "@ember/app-tsconfig",
   "compilerOptions": {
     "baseUrl": ".",
     "paths": {