fix: inline ENV variables when building excalidraw package (#4311)

src/setupTests.ts

@@ -1,6 +1,13 @@
 import "@testing-library/jest-dom";
 import "jest-canvas-mock";
 
+import dotenv from "dotenv";
+
+// jest doesn't know of .env.development so we need to init it ourselves
+dotenv.config({
+  path: require("path").resolve(__dirname, "../.env.development"),
+});
+
 jest.mock("nanoid", () => {
   return {
     nanoid: jest.fn(() => "test-id"),