Fix 3.10

Author: lahirumaramba

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: [3.7, 3.8, 3.9, 3.10, pypy3.7]
+        python: ['3.7', '3.8', '3.9', '3.10', 'pypy3.7']
 
     steps:
     - uses: actions/checkout@v3

CONTRIBUTING.md

@@ -85,7 +85,7 @@ information on using pull requests.
 
 ### Initial Setup
 
-You need Python 3.6+ to build and test the code in this repo.
+You need Python 3.7+ to build and test the code in this repo.
 
 We recommend using [pip](https://pypi.python.org/pypi/pip) for installing the necessary tools and
 project dependencies. Most recent versions of Python ship with pip. If your development environment