deprecate py34, py35, py36, py37, add py39, py310, py311 to CI

Author: alekna

.github/workflows/ci.yaml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python: [3.5, 3.6, 3.7, 3.8]
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
     steps:
       - uses: actions/checkout@v2
       - name: Setup Python

tox.ini

@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = py34, py35, py36, py34-linux-package, py35-linux-package, py36-linux-package, docs
+envlist = py36, py36-linux-package, docs
 
 [testenv]
 setenv =
@@ -22,23 +22,6 @@ deps =
     httpretty>=0.8.14
 commands = py.test
 
-[testenv:py34-linux-package]
-basepython = python3.4
-deps =
-    pex
-    wheel
-commands =
-    /bin/bash -c 'pex . -r <(pip freeze) --disable-cache --python-shebang="/usr/bin/env python3" -o stacks_py34_linux.pex -c stacks'
-
-[testenv:py35-linux-package]
-basepython = python3.5
-
-deps =
-    pex
-    wheel
-commands =
-    /bin/bash -c 'pex . -r <(pip freeze) --disable-cache --python-shebang="/usr/bin/env python3" -o stacks_py35_linux.pex -c stacks'
-
 [testenv:py36-linux-package]
 basepython = python3.6