Update ipfshttpclient to 0.8.0a2

Author: kclowes

setup.py

@@ -79,7 +79,7 @@
         "eth-typing>=2.0.0,<3.0.0",
         "eth-utils>=1.9.5,<2.0.0",
         "hexbytes>=0.1.0,<1.0.0",
-        "ipfshttpclient==0.7.0",
+        "ipfshttpclient==0.8.0a2",
         "jsonschema>=3.2.0,<4.0.0",
         "lru-dict>=1.1.6,<2.0.0",
         "protobuf>=3.10.0,<4",