[python-package] Change build settings to set strict-config to false (#6493)

.github/workflows/cuda.yml

@@ -72,6 +72,7 @@ jobs:
         OS_NAME: linux
         PYTHON_VERSION: ${{ matrix.python_version }}
         TASK: ${{ matrix.task }}
+        SKBUILD_STRICT_CONFIG: true
       options: --gpus all
     timeout-minutes: 30
     strategy:

.github/workflows/python_package.yml

@@ -15,6 +15,7 @@ concurrency:
 
 env:
   CMAKE_BUILD_PARALLEL_LEVEL: 4
+  SKBUILD_STRICT_CONFIG: true
 
 jobs:
   test:

.vsts-ci.yml

@@ -15,6 +15,7 @@ variables:
   skipComponentGovernanceDetection: true
   DOTNET_CLI_TELEMETRY_OPTOUT: true
   DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true
+  SKBUILD_STRICT_CONFIG: true
 resources:
   # The __work/ directory, where Azure DevOps writes the source files, needs to be read-write because
   # LightGBM's CI jobs write files in the source directory.

python-package/pyproject.toml

@@ -79,7 +79,7 @@ logging.level = "INFO"
 sdist.reproducible = true
 wheel.py-api = "py3"
 experimental = false
-strict-config = true
+strict-config = false
 minimum-version = "0.9.3"
 
 # end:build-system