chore: fix github actions test runner

Author: parasdaryanani

jest.config.js

@@ -1,6 +1,9 @@
 module.exports = {
   preset: 'ts-jest',
   testEnvironment: 'node',
-  testMatch: ['**/__tests__/**/*.ts?(x)', '**/?(*.)+(spec|test).ts?(x)'],
+  testMatch: ['**/__tests__/**/*.ts?(x)', '**/?(*.)+(spec|test).ts?(x)', '!**/*.d.ts'],
   moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],
+  moduleNameMapper: {
+    '^fcm-cloudflare-workers$': '<rootDir>/dist/index.js',
+  },
 };