Update RF and Python versions (#70)

Author: aaltat

.github/workflows/CI.yml

@@ -8,8 +8,8 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [2.7, 3.6, 3.8, pypy3]
-        rf-version: [3.1.2, 3.2.1]
+        python-version: [2.7, 3.6, 3.9, pypy3]
+        rf-version: [3.1.2, 3.2.2]
 
     steps:
     - uses: actions/checkout@v2