Update github actions

Author: virtuald

.github/workflows/dist.yml

@@ -33,8 +33,8 @@ jobs:
     strategy:
       matrix:
         os: [windows-latest, macos-latest, ubuntu-20.04]
-        python_version: [3.5, 3.6, 3.7, 3.8]
-        architecture: [x86, x64]
+        python_version: [3.8]
+        architecture: [x64]
         exclude:
         - os: macos-latest
           architecture: x86