Use qtoml instead of pytomlpp

qtoml is more portable, as it's written in pure python rather than C++

replacer.py

@@ -11,8 +11,8 @@ import asyncio
 import aiohttp
 import contextlib
 import contextvars
+import qtoml as toml
 from yarl import URL
-import pytomlpp as toml
 from aiohttp import web
 from utils import build_dprint_factory, ContextVar, MultiReplacer
 

requirements.txt

@@ -1 +1,2 @@
 aiohttp ~= 3.0
+qtoml ~= 0.3