Disable flask master tests (#564)

Author: TimPansino

tox.ini

@@ -119,7 +119,8 @@ envlist =
     python-framework_fastapi-{py36,py37,py38,py39,py310},
     python-framework_flask-{pypy,py27}-flask0012,
     python-framework_flask-{pypy,py27,py36,py37,py38,py39,py310,pypy36}-flask0101,
-    python-framework_flask-{py37,py38,py39,py310,pypy37}-flask{latest,master},
+    ; temporarily disabling flaskmaster tests
+    python-framework_flask-{py37,py38,py39,py310,pypy37}-flask{latest},
     python-framework_graphene-{py36,py37,py38,py39,py310}-graphenelatest,
     python-framework_graphene-{py27,py36,py37,py38,py39,pypy,pypy36}-graphene{0200,0201},
     python-framework_graphene-py310-graphene0201,