fix(ext/node): Correctly send ALPN on node TLS connections (#23434)

Landing work from #21903, plus fixing a node compat bug.

We were always sending the HTTP/2 ALPN on TLS connections which might
confuse upstream servers.

Changes:
- Configure HTTP/2 ALPN when making the TLS connection from the HTTP/2
code
- Read the `ALPNProtocols` property from the TLS connection options
rather than the deno `alpnProtocols` field
 - Add tests

Prereq for landing Deno.serveHttp on Deno.serve: removing older HTTP
servers from the codebase.

1 files changed, 1 insertions, 0 deletions

diff --git a/tests/unit_node/net_test.ts b/tests/unit_node/net_test.ts
index eac4633cb..e08b24c02 100644
--- a/tests/unit_node/net_test.ts
+++ b/tests/unit_node/net_test.ts
@@ -55,6 +55,7 @@ Deno.test("[node/net] net.connect().unref() works", async () => {
   const ctl = new AbortController();
   const server = Deno.serve({
     signal: ctl.signal,
+    port: 0, // any available port will do
     handler: () => new Response("hello"),
     onListen: async ({ port, hostname }) => {
       const { stdout, stderr } = await new Deno.Command(Deno.execPath(), {