Upgrade to Python 3.12 (#700)

* Bump python from 3.11.5-slim to 3.12.0-slim

Bumps python from 3.11.5-slim to 3.12.0-slim.

---
updated-dependencies:
- dependency-name: python
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

* Upgrade to Python 3.12 across the project

* Upgrade Pylint

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Graham Beckley <[email protected]>

Author: dependabot[bot]

.github/workflows/ci.yaml

@@ -10,7 +10,7 @@ jobs:
       - uses: actions/setup-python@v4
         id: setup-python
         with:
-          python-version: "3.11"
+          python-version: "3.12"
       - name: Install poetry
         run: pipx install poetry
       - uses: actions/cache@v3
@@ -27,7 +27,7 @@ jobs:
       - uses: actions/setup-python@v4
         id: setup-python
         with:
-          python-version: "3.11"
+          python-version: "3.12"
       - name: Install poetry
         run: pipx install poetry
       - uses: actions/cache@v3

Dockerfile

@@ -1,5 +1,5 @@
 # Creating a python base with shared environment variables
-FROM python:3.11.5 as base
+FROM python:3.12.0 as base
 ENV PIP_NO_CACHE_DIR=off \
     PIP_DEFAULT_TIMEOUT=100 \
     PIP_DISABLE_PIP_VERSION_CHECK=on \
@@ -12,7 +12,7 @@ ENV PATH="$POETRY_HOME/bin:$PATH"
 
 # Install Poetry - respects $POETRY_VERSION & $POETRY_HOME
 RUN python3 -m venv $POETRY_HOME && \
-    $POETRY_HOME/bin/pip install poetry==1.4.0 && \
+    $POETRY_HOME/bin/pip install poetry==1.7.1 && \
     $POETRY_HOME/bin/poetry --version
 
 # We copy our Python requirements here to cache them
@@ -22,7 +22,7 @@ COPY ./poetry.lock ./pyproject.toml ./
 RUN $POETRY_HOME/bin/poetry install --without dev --no-root
 
 # `production` stage uses the dependencies downloaded in the `base` stage
-FROM python:3.11.5-slim as production
+FROM python:3.12.0-slim as production
 ENV PORT=8000 \
     PYTHONUNBUFFERED=1 \
     PYTHONDONTWRITEBYTECODE=1 \