Add vanilla Node.js handler #2916

Job	Run time
eslint-plugin: Test	31s
Create examples test matrix	3s
inngest: Local API diff	34s
inngest: Lint	45s
inngest: Runtime tests (14)	1m 32s
inngest: Composite tests	51s
inngest: Runtime tests (16)	1m 32s
inngest: Dependency tests	35s
inngest: Runtime tests (18)	1m 33s
inngest: Dist tests	38s
inngest: Runtime tests (20)	1m 24s
inngest: Runtime tests (22)	1m 21s
inngest: Type tests (latest)	45s
middleware-encryption: Test	25s
inngest: Type tests (~5.7.0)	53s
inngest: Type tests (~5.6.0)	46s
middleware-validation: Test	34s
inngest: Type tests (~5.5.0)	53s
inngest: Package	41s
inngest: Type tests (~5.4.0)	59s
inngest: Type tests (~5.3.0)	48s
inngest: Type tests (~5.2.0)	59s
inngest: Type tests (~5.1.0)	52s
inngest: Type tests (~5.0.0)	48s
inngest: Type tests (~4.9.0)	48s
inngest: Type tests (~4.8.0)	47s
inngest: Type tests (~4.7.0)	50s
Test examples (framework-nuxt)	1m 48s
Test examples (framework-nitro)	1m 40s
Test examples (framework-google-functions-framework)	1m 23s
Test examples (framework-remix)	1m 57s
Test examples (bun)	1m 26s
Test examples (framework-nextjs-pages-router)	1m 34s
Test examples (framework-koa)	1m 28s
Test examples (framework-sveltekit)	1m 35s
Test examples (framework-fastify)	1m 33s
Test examples (framework-express)	1m 30s
Test examples (framework-nextjs-app-router)	1m 32s
Test examples (framework-hono)	1m 31s
Test examples (framework-astro)	1m 34s
Test examples (framework-remix, force)	2m 4s
Test examples (framework-nextjs-app-router, force)	1m 42s
	47m 24s

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