Pin CircleCI env on Python 3.11.1 (#28)

Author: lakkeger

.circleci/config.yml

@@ -9,17 +9,18 @@ jobs:
   save-state:
     executor: localstack/default
     steps:
+      - checkout
       - restore_cache:
           keys:
             - python-deps-{{ checksum "requirements-dev.txt" }}
             - python-deps
       - run:
-          name: Install Python 3.9
+          name: Install Python 3.11
           command: |
-            test -d /opt/circleci/.pyenv/versions/3.9.16 || pyenv install 3.9.16
-            pyenv global 3.9.16
+            # Currently highest available 3.11 on CircleCI runner
+            test -d /opt/circleci/.pyenv/versions/3.11.1 || pyenv install 3.11.1
+            pyenv global 3.11.1
       - localstack/start        
-      - checkout
       - run:
           name: Install dependencies
           command:
@@ -38,7 +39,7 @@ jobs:
             - ls-state.zip
       - save_cache:
           paths:
-            - /opt/circleci/.pyenv/versions/3.9.16
+            - /opt/circleci/.pyenv/versions/3.11.1
           key: python-deps-{{ checksum "requirements-dev.txt" }}
       - store_artifacts:
           path: ls-state.zip
@@ -59,7 +60,7 @@ jobs:
       - run:
           name: Choose python version
           command:
-            pyenv global 3.9.16
+            pyenv global 3.11.1
       - localstack/start        
       - checkout
       - run: