ci(node): run examples in CI (#1796)

This is done as setup for a PR that will fix the OpenAI dependency
issue.

 * [x] FTS examples
 * [x] Setup mock openai
 * [x] Ran `npm audit fix`
 * [x] sentences embeddings test
 * [x] Double check formatting of docs examples

nodejs/examples/tsconfig.json

@@ -0,0 +1,17 @@
+{
+  "include": ["*.test.ts"],
+  "compilerOptions": {
+    "target": "es2022",
+    "module": "NodeNext",
+    "declaration": true,
+    "outDir": "./dist",
+    "strict": true,
+    "allowJs": true,
+    "resolveJsonModule": true,
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true,
+    "moduleResolution": "NodeNext",
+    "allowImportingTsExtensions": true,
+    "emitDeclarationOnly": true
+  }
+}