test installation with chia - make it work too

.github/workflows/ci.yml

@@ -109,6 +109,8 @@ jobs:
             coverage: true
           - name: Check hints
             tox: check-hints
+          - name: Install with Chia
+            tox: install-with-chia
         include:
           - task:
               name: Check manifest

setup.cfg

@@ -41,7 +41,7 @@ install_requires =
     click ~= 7.1
     desert == 2020.11.18
     marshmallow ~= 3.12
-    packaging ~= 20.9
+    packaging ~= 21.0
     pendulum ~= 2.1
     psutil ~= 5.8
     pyyaml ~= 5.4

tox.ini

@@ -35,6 +35,12 @@ extras =
 commands =
     mypy --package plotman
 
+[testenv:install-with-chia-py{37,38,39}]
+skip_install = true
+commands =
+    pip install --upgrade pip setuptools wheel
+    pip install {toxinidir} chia-blockchain==1.3.0
+
 [testenv:check-format]
 basepython = python3.8
 changedir = {toxinidir}