Update minimum python to 3.9, and remove jupyter install

.github/workflows/build_wheels.yml

@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.9', '3.10', '3.11', '3.12']
         os: [ubuntu-latest, macos-latest]
         include:
           - os: macos-latest
@@ -68,7 +68,6 @@ jobs:
         source multibuild/common_utils.sh
         source multibuild/travis_steps.sh
         before_install
-        pip install jupyter
         build_index_wheel $PROJECT_SPEC  # download source from pypi
         # build_wheel $REPO_DIR $PLAT  # versioneer does not work with submodules
         install_run $PLAT

appveyor.yml

@@ -53,11 +53,6 @@ environment:
     BUILD_COMMIT: master
 
   matrix:
-    - PYTHON: C:\Python38-x64
-      PYTHON_VERSION: '3.8'
-      PYTHON_ARCH: 64
-      PYTHON_BUILD_DIR: build\lib.win-amd64-cpython-38
-
     - PYTHON: C:\Python39-x64
       PYTHON_VERSION: '3.9'
       PYTHON_ARCH: 64

config.sh

@@ -24,7 +24,6 @@ function pre_build {
         build_openblas
         ldconfig
         build_fftw
-	pip install jupyter
     fi
     unset FFLAGS
     set +x