don't skip missing interpreters

Author: KotlinIsland

.github/workflows/test.yml

@@ -93,6 +93,8 @@ jobs:
           toxenv: lint
 
     name: ${{ matrix.name }}
+    env:
+      TOX_SKIP_MISSING_INTERPRETERS: False
     steps:
     - uses: actions/checkout@v2
     - uses: actions/setup-python@v2

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 minversion = 3.8.0
-skip_missing_interpreters = true
+skip_missing_interpreters = {env:TOX_SKIP_MISSING_INTERPRETERS:True}
 envlist =
     py36,
     py37,