Add vanilla Node.js handler #2914

Job	Run time
Create examples test matrix	2s
eslint-plugin: Test	33s
inngest: Local API diff	33s
inngest: Lint	48s
inngest: Runtime tests (14)	1m 32s
inngest: Composite tests	47s
inngest: Dependency tests	40s
inngest: Dist tests	38s
inngest: Runtime tests (16)	1m 33s
inngest: Runtime tests (18)	1m 30s
middleware-encryption: Test	26s
middleware-validation: Test	29s
inngest: Runtime tests (20)	1m 32s
inngest: Type tests (latest)	47s
inngest: Runtime tests (22)	1m 18s
inngest: Type tests (~5.7.0)	46s
inngest: Package	38s
inngest: Type tests (~5.6.0)	46s
inngest: Type tests (~5.5.0)	47s
inngest: Type tests (~5.4.0)	45s
inngest: Type tests (~5.3.0)	53s
inngest: Type tests (~5.2.0)	46s
inngest: Type tests (~5.1.0)	46s
inngest: Type tests (~5.0.0)	45s
inngest: Type tests (~4.9.0)	49s
inngest: Type tests (~4.8.0)	48s
inngest: Type tests (~4.7.0)	47s
Test examples (framework-nuxt)	1m 51s
Test examples (framework-nitro)	1m 46s
Test examples (framework-google-functions-framework)	1m 24s
Test examples (framework-remix)	1m 52s
Test examples (bun)	1m 17s
Test examples (framework-nextjs-pages-router)	1m 34s
Test examples (framework-koa)	1m 22s
Test examples (framework-sveltekit)	1m 35s
Test examples (framework-fastify)	1m 31s
Test examples (framework-express)	1m 19s
Test examples (framework-nextjs-app-router)	1m 42s
Test examples (framework-hono)	6m 4s
Test examples (framework-astro)	1m 37s
Test examples (framework-remix, force)	2m 4s
Test examples (framework-nextjs-app-router, force)	1m 41s
	51m 3s

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