wasm: Fix Brotli compression in qtwasmserver.py

There is not compress() function in brotli.Compressor API.
Use process().
Use requirements.txt instead of Pipfile.

Change-Id: I55a0263f16f36bcb4b96e443f85925b7d5dd15af
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>

util/wasm/qtwasmserver/Pipfile

@@ -1,12 +0,0 @@
-[[source]]
-url = "https://pypi.org/simple"
-verify_ssl = true
-name = "pypi"
-
-[packages]
-netifaces = "*"
-
-[dev-packages]
-
-[requires]
-python_version = "3.9"

util/wasm/qtwasmserver/qtwasmserver.py

@@ -4,15 +4,11 @@
 
 import argparse
 import os
-import pathlib
-import socket
 import ssl
 import subprocess
-import sys
 import tempfile
 import threading
 from enum import Enum
-from http import HTTPStatus
 from http.server import SimpleHTTPRequestHandler, ThreadingHTTPServer
 from subprocess import run
 from functools import partial
@@ -110,7 +106,7 @@ class CompressionHttpRequesthandler(HTTPCompressionRequestHandler):
                 if not buf:
                     yield compressor.finish()
                     return
-                yield compressor.compress(buf)
+                yield compressor.process(buf)
 
                 # must flush compressor state to work around crash/assert in brotlicffi,
                 # see https://github.com/python-hyper/brotlicffi/issues/167

util/wasm/qtwasmserver/requirements.txt

@@ -0,0 +1,3 @@
+Brotli==1.1.0
+httpcompressionserver==0.5
+netifaces==0.11.0