Support for Python 3.12 (#1317)

* support for Python 3.12

* add python 3.12 to workflows

* version string fix

* retrieval chat

* teachability

* workflow

* redistribute notebook tests

* fix incorrect notebook introduction

* update banner; remove unused imports; update openai workflow

---------

Co-authored-by: Chi Wang <wang.chi@microsoft.com>

.github/workflows/build.yml

@@ -5,14 +5,14 @@ name: Build
 
 on:
   push:
-    branches: ['main']
+    branches: ["main"]
     paths:
-      - 'autogen/**'
-      - 'test/**'
-      - '.github/workflows/build.yml'
-      - 'setup.py'
+      - "autogen/**"
+      - "test/**"
+      - ".github/workflows/build.yml"
+      - "setup.py"
   pull_request:
-    branches: ['main']
+    branches: ["main"]
   merge_group:
     types: [checks_requested]
 
@@ -22,13 +22,12 @@ concurrency:
 
 jobs:
   build:
-
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-2019]
-        python-version: ["3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python ${{ matrix.python-version }}