Update dependencies and refactor import statements (#1435)

This pull request updates the python-multipart version, updates the
dependencies in pyproject.toml, adds Python 3.11 support to lint and
test workflows, and refactors import statements in Qdrant.py.

.github/workflows/lint.yml

@@ -16,6 +16,7 @@ jobs:
         python-version:
           - "3.9"
           - "3.10"
+          - "3.11"
     steps:
       - uses: actions/checkout@v4
       - name: Install poetry

.github/workflows/test.yml

@@ -16,6 +16,7 @@ jobs:
       matrix:
         python-version:
           - "3.10"
+          - "3.11"
     env:
       OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
     steps: