[ci] add Python 3.11 test coverage (#5922)

.appveyor.yml

@@ -3,7 +3,7 @@ version: 3.3.5.99.{build}
 image: Visual Studio 2015
 platform: x64
 configuration:  # a trick to construct a build matrix with multiple Python versions
-  - '3.7'
+  - '3.8'
 
 # only build pull requests and
 # commits to 'master' or any branch starting with 'release'

.github/workflows/cuda.yml

@@ -30,17 +30,17 @@ jobs:
         include:
           - method: wheel
             compiler: gcc
-            python_version: "3.10"
+            python_version: "3.11"
             cuda_version: "11.7.1"
             task: cuda
           - method: source
             compiler: gcc
-            python_version: "3.8"
+            python_version: "3.9"
             cuda_version: "10.0"
             task: cuda
           - method: pip
             compiler: clang
-            python_version: "3.9"
+            python_version: "3.10"
             cuda_version: "11.7.1"
             task: cuda
     steps:

.github/workflows/linkchecker.yml

@@ -11,7 +11,7 @@ env:
   CONDA_ENV: test-env
   GITHUB_ACTIONS: 'true'
   OS_NAME: 'linux'
-  PYTHON_VERSION: '3.10'
+  PYTHON_VERSION: '3.11'
   TASK: 'check-links'
 
 jobs:

.github/workflows/python_package.yml

@@ -29,28 +29,28 @@ jobs:
         include:
           - os: macOS-latest
             task: regular
-            python_version: '3.8'
+            python_version: '3.9'
           - os: macOS-latest
             task: sdist
-            python_version: '3.9'
+            python_version: '3.10'
           - os: macOS-latest
             task: bdist
             python_version: '3.7'
           - os: macOS-latest
             task: if-else
-            python_version: '3.8'
+            python_version: '3.9'
           - os: macOS-latest
             task: mpi
             method: source
-            python_version: '3.9'
+            python_version: '3.10'
           - os: macOS-latest
             task: mpi
             method: pip
-            python_version: '3.10'
+            python_version: '3.11'
           - os: macOS-latest
             task: mpi
             method: wheel
-            python_version: '3.7'
+            python_version: '3.8'
     steps:
       - name: Checkout repository
         uses: actions/checkout@v3

.vsts-ci.yml

@@ -10,7 +10,7 @@ pr:
 - release/*
 variables:
   AZURE: 'true'
-  PYTHON_VERSION: '3.10'
+  PYTHON_VERSION: '3.11'
   CONDA_ENV: test-env
   runCodesignValidationInjection: false
   skipComponentGovernanceDetection: true
@@ -97,7 +97,7 @@ jobs:
         TASK: sdist
       bdist:
         TASK: bdist
-        PYTHON_VERSION: '3.8'
+        PYTHON_VERSION: '3.9'
       inference:
         TASK: if-else
       mpi_source:
@@ -106,23 +106,23 @@ jobs:
       mpi_pip:
         TASK: mpi
         METHOD: pip
-        PYTHON_VERSION: '3.9'
+        PYTHON_VERSION: '3.10'
       mpi_wheel:
         TASK: mpi
         METHOD: wheel
-        PYTHON_VERSION: '3.7'
+        PYTHON_VERSION: '3.8'
       gpu_source:
         TASK: gpu
         METHOD: source
-        PYTHON_VERSION: '3.9'
+        PYTHON_VERSION: '3.10'
       gpu_pip:
         TASK: gpu
         METHOD: pip
-        PYTHON_VERSION: '3.8'
+        PYTHON_VERSION: '3.9'
       gpu_wheel:
         TASK: gpu
         METHOD: wheel
-        PYTHON_VERSION: '3.7'
+        PYTHON_VERSION: '3.8'
       cpp_tests:
         TASK: cpp-tests
         METHOD: with-sanitizers
@@ -224,10 +224,10 @@ jobs:
     matrix:
       regular:
         TASK: regular
-        PYTHON_VERSION: '3.9'
+        PYTHON_VERSION: '3.10'
       sdist:
         TASK: sdist
-        PYTHON_VERSION: '3.8'
+        PYTHON_VERSION: '3.9'
       bdist:
         TASK: bdist
       swig:
@@ -264,10 +264,10 @@ jobs:
     matrix:
       regular:
         TASK: regular
-        PYTHON_VERSION: '3.9'
+        PYTHON_VERSION: '3.10'
       sdist:
         TASK: sdist
-        PYTHON_VERSION: '3.8'
+        PYTHON_VERSION: '3.9'
       bdist:
         TASK: bdist
       swig:

python-package/pyproject.toml

@@ -14,6 +14,7 @@ classifiers = [
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
     "Topic :: Scientific/Engineering :: Artificial Intelligence"
 ]
 dependencies = [