Fix abort handler in "ws" polyfill

[Jarred-Sumner]

What does this PR do?

This does two things:

1. Fix an ASAN use-after-poison on macOS involving ws module when running websocket.test.js. This was caused by the open callback firing before the .upgrade function call returns. We need to update the socket value on the ServerWebSocket to ensure the NodeHTTPResponse object is kept alive for as long as it should be, but the us_socket_t address can, in theory, change due to realloc being used when adopting the socket.
2. Fixes an "undefined is not a function" error when the websocket upgrade fails. This occurred because the _httpMessage property is not set when a socket is upgraded

How did you verify your code works?

There is a test and the asan error no longer triggers

[robobun]

^{Updated 4:21 PM PT - Aug 14th, 2025}

❌ @autofix-ci[bot], your commit 601bb1a has 4 failures in Build #22970:

• test/js/bun/shell/shell-load.test.ts - 1 failing on 🍎 13 aarch64
• test/js/node/test/parallel/test-worker-memory.js - code 1 on 🍎 14 aarch64
• test/js/node/test/parallel/test-child-process-spawnsync-shell.js - timeout on 🪟 2019 x64-baseline
• test/js/node/test/parallel/test-child-process-spawnsync-shell.js - timeout on 🪟 2019 x64
• test/js/bun/shell/pipeline_stack.test.ts - 1 failing on 🪟 2019 x64-baseline
• test/js/bun/shell/pipeline_stack.test.ts - 1 failing on 🪟 2019 x64

---

🧪   To try this PR locally:

bunx bun-pr 21867

That installs a local version of the PR into your bun-21867 executable, so you can run:

bun-21867 --bun