Drop Python 3.6 testing for Pyramid master. (#478)

* Drop Python 3.6 testing for Pyramid master.

* Temporarily disable Pyramid pypy3 testing.

Author: umaannamalai

tox.ini

@@ -129,7 +129,8 @@ envlist =
     grpc-framework_grpc-{py36,py37,py38,py39,py310}-grpclatest,
     python-framework_pyramid-{pypy,py27,py38}-Pyramid0104,
     python-framework_pyramid-{pypy,py27,pypy3,py36,py37,py38,py39,py310}-Pyramid0110-cornice,
-    python-framework_pyramid-{pypy3,py36,py37,py38,py39,py310}-Pyramidmaster,
+    ;temporarily disabling pypy3 on pyramid master
+    python-framework_pyramid-{py37,py38,py39,py310}-Pyramidmaster,
     python-framework_sanic-{py38,pypy3}-sanic{190301,1906,1812,1912,200904,210300},
     python-framework_sanic-{py36,py37,py38,py310,pypy3}-saniclatest,
     python-framework_starlette-{py36,py310,pypy3}-starlette{0014,0015},