✔️ DroneCI: Build on Python 3.6 → 3.10

.drone.jsonnet

@@ -16,9 +16,9 @@ local Pipeline(name, image) = {
 };
 
 [
-  Pipeline("python-3-5", "python:3.5"),
   Pipeline("python-3-6", "python:3.6"),
   Pipeline("python-3-7", "python:3.7"),
   Pipeline("python-3-8", "python:3.8"),
   Pipeline("python-3-9", "python:3.9"),
+  Pipeline("python-3-10", "python:3.10"),
 ]