feat: Add skeleton for api key module (#6451)

Adds a module skeleton for the API Key module.
Implementation of functionalities will follow in separate PRs

packages/api-key/integration-tests/__tests__/api-key-module-service.spec.ts

@@ -0,0 +1,21 @@
+import { Modules } from "@medusajs/modules-sdk"
+import { IApiKeyModuleService } from "@medusajs/types"
+import { moduleIntegrationTestRunner, SuiteOptions } from "medusa-test-utils"
+
+jest.setTimeout(100000)
+
+moduleIntegrationTestRunner({
+  moduleName: Modules.API_KEY,
+  testSuite: ({
+    MikroOrmWrapper,
+    service,
+  }: SuiteOptions<IApiKeyModuleService>) => {
+    describe("API Key Module Service", () => {
+      describe("noop", () => {
+        it("should run", function () {
+          expect(true).toBe(true)
+        })
+      })
+    })
+  },
+})