update apidaora requirements (#5295)

frameworks/Python/apidaora/requirements.txt

@@ -1,6 +1,6 @@
-asyncpg==0.19.0
-gunicorn==19.9.0
+asyncpg==0.20.0
+gunicorn==20.0.4
 jinja2==2.10.3
-apidaora==0.9.0
--e git+https://github.com/MagicStack/uvloop@82104fb68e6cf2b469622e62169cdbeac93846cb#egg=uvloop
-uvicorn==0.9.0
+apidaora==0.12.0
+uvloop==0.14.0
+uvicorn==0.10.8