build: Drop outdated py36 tox job

Stranger6667 · Stranger6667 · commit 6a1e1d3d2326 · 2023-02-01T00:31:04.000+01:00
diff --git a/bindings/python/tox.ini b/bindings/python/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 skipsdist = True
-envlist = py{36,37,38,39,310,311}
+envlist = py{37,38,39,310,311}
 
 [testenv]
 deps =
