Run CI on 3.9.5 (#1887)

* Update test-suite.yml

* Update test-suite.yml

Author: tomchristie

.github/workflows/test-suite.yml

@@ -14,7 +14,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ["3.6", "3.7", "3.8", "3.9", "3.10.0-rc.1"]
+        python-version: ["3.6", "3.7", "3.8", "3.9.5", "3.10.0-rc.1"]
 
     steps:
       - uses: "actions/checkout@v2"