breaking: test and use Python 3.11, up from Python 3.9

Author: consideRatio

.github/workflows/diff.yml

@@ -35,7 +35,7 @@ jobs:
 
       - uses: actions/setup-python@v4
         with:
-          python-version: "3.9"
+          python-version: "3.11"
 
       - name: Install helm diff plugin, update local chart dependencies
         run: |

.github/workflows/publish.yml

@@ -41,7 +41,7 @@ jobs:
           fetch-depth: 0
       - uses: actions/setup-python@v4
         with:
-          python-version: "3.9"
+          python-version: "3.11"
 
       - name: Set up QEMU (for docker buildx)
         uses: docker/setup-qemu-action@v2
@@ -109,7 +109,7 @@ jobs:
           fetch-depth: 0
       - uses: actions/setup-python@v4
         with:
-          python-version: "3.9"
+          python-version: "3.11"
       - name: Install pypa/build
         run: python -mpip install build
       - name: Build a sdist, and a binary wheel from the sdist

.github/workflows/test-docker-build.yaml

@@ -38,7 +38,7 @@ jobs:
 
       - uses: actions/setup-python@v4
         with:
-          python-version: "3.9"
+          python-version: "3.11"
 
       - name: Install chartpress
         run: pip install chartpress

.github/workflows/test.yml

@@ -154,7 +154,7 @@ jobs:
       - uses: actions/setup-python@v4
         id: setup-python
         with:
-          python-version: "3.9"
+          python-version: "3.11"
 
       - name: Cache pip
         uses: actions/cache@v3

ci/refreeze

@@ -10,5 +10,5 @@ docker run --rm \
     --volume="$PWD:/io" \
     --workdir=/io \
     --user=root \
-    python:3.9-bullseye \
+    python:3.11-bullseye \
     sh -c 'pip install pip-tools==6.* && pip-compile --upgrade helm-chart/images/binderhub/requirements.in'

helm-chart/images/binderhub/Dockerfile

@@ -6,7 +6,7 @@
 #
 # NOTE: If the image version is updated, also update it in ci/refreeze!
 #
-FROM python:3.9-bullseye as build-stage
+FROM python:3.11-bullseye as build-stage
 WORKDIR /build-stage
 
 # install node as required to build a binderhub wheel
@@ -23,14 +23,14 @@ COPY . .
 RUN --mount=type=cache,target=${PIP_CACHE_DIR} \
     pip install build \
  && pip wheel \
-       . \
-       pycurl \
-       -r helm-chart/images/binderhub/requirements.txt
+        . \
+        pycurl \
+        -r helm-chart/images/binderhub/requirements.txt
 
 
 # The final stage
 # ---------------
-FROM python:3.9-slim-bullseye
+FROM python:3.11-slim-bullseye
 
 ENV PYTHONUNBUFFERED=1
 ENV DEBIAN_FRONTEND=noninteractive