boto3 develop branch requires Python >=3.10

Author: sbSteveK

.github/workflows/ci.yml

@@ -9,7 +9,7 @@ jobs:
 
     - uses: actions/setup-python@v4
       with:
-        python-version: '3.9' # default version on Amazon Linux 2023
+        python-version: '3.10' # boto3 develop branch requires >=3.10
 
     - uses: actions/setup-java@v3
       with: