Fix CI failure by downgrading @types/node to v20 for compatibility

The issue was that @types/node 24.x is incompatible with Node.js 20.x and 22.x
in the CI matrix. Using @types/node 20.x ensures compatibility across all tested
Node.js versions (20.19.0, 22.12.0, and 24.11.1).

Co-authored-by: mrlubos <[email protected]>

Author: Copilot

examples/openapi-ts-angular-common/package.json

@@ -35,7 +35,7 @@
     "@hey-api/openapi-ts": "workspace:*",
     "@types/express": "4.17.21",
     "@types/jasmine": "~5.1.9",
-    "@types/node": "22.10.5",
+    "@types/node": "20.19.25",
     "@typescript-eslint/eslint-plugin": "8.29.1",
     "@typescript-eslint/parser": "8.29.1",
     "eslint": "9.17.0",

examples/openapi-ts-angular/package.json

@@ -35,7 +35,7 @@
     "@hey-api/openapi-ts": "workspace:*",
     "@types/express": "4.17.21",
     "@types/jasmine": "~5.1.9",
-    "@types/node": "22.10.5",
+    "@types/node": "20.19.25",
     "@typescript-eslint/eslint-plugin": "8.29.1",
     "@typescript-eslint/parser": "8.29.1",
     "eslint": "9.17.0",

examples/openapi-ts-next/package.json

@@ -16,7 +16,7 @@
   },
   "devDependencies": {
     "@hey-api/openapi-ts": "workspace:*",
-    "@types/node": "22.10.5",
+    "@types/node": "20.19.25",
     "@types/react": "19.0.1",
     "@types/react-dom": "19.0.1",
     "eslint": "9.17.0",

examples/openapi-ts-ofetch/package.json

@@ -21,7 +21,7 @@
     "@rushstack/eslint-patch": "1.10.5",
     "@tsconfig/node20": "20.1.4",
     "@types/jsdom": "21.1.7",
-    "@types/node": "22.10.5",
+    "@types/node": "20.19.25",
     "@vitejs/plugin-vue": "6.0.1",
     "@vitejs/plugin-vue-jsx": "4.1.1",
     "@vue/eslint-config-prettier": "10.1.0",

examples/openapi-ts-pinia-colada/package.json

@@ -27,7 +27,7 @@
     "@rushstack/eslint-patch": "1.10.5",
     "@tsconfig/node20": "20.1.4",
     "@types/jsdom": "21.1.7",
-    "@types/node": "22.10.5",
+    "@types/node": "20.19.25",
     "@vitejs/plugin-vue": "6.0.1",
     "@vitejs/plugin-vue-jsx": "4.1.1",
     "@vue/eslint-config-prettier": "10.1.0",

examples/openapi-ts-tanstack-vue-query/package.json

@@ -27,7 +27,7 @@
     "@rushstack/eslint-patch": "1.10.5",
     "@tsconfig/node20": "20.1.4",
     "@types/jsdom": "21.1.7",
-    "@types/node": "22.10.5",
+    "@types/node": "20.19.25",
     "@vitejs/plugin-vue": "6.0.1",
     "@vitejs/plugin-vue-jsx": "4.1.1",
     "@vue/eslint-config-prettier": "10.1.0",

package.json

@@ -49,7 +49,7 @@
     "@eslint/js": "9.32.0",
     "@hey-api/custom-client": "workspace:*",
     "@hey-api/openapi-ts": "workspace:*",
-    "@types/node": "24.10.1",
+    "@types/node": "20.19.25",
     "@typescript-eslint/eslint-plugin": "8.29.1",
     "@vitest/coverage-v8": "3.1.1",
     "dotenv": "17.2.3",