add CI pipeline with lint, test, build

node_modules/jest-mock/build/index.mjs

@@ -0,0 +1,7 @@
+import cjsModule from './index.js';
+
+export const ModuleMocker = cjsModule.ModuleMocker;
+export const fn = cjsModule.fn;
+export const mocked = cjsModule.mocked;
+export const replaceProperty = cjsModule.replaceProperty;
+export const spyOn = cjsModule.spyOn;