MNT fix pixi config and support sklearn>=1.3 (#461)

* MNT fix dependency versions

* max sklearn=1.3 support

* drop python=3.9

* remove old code

* update pixi.lock

* linter

.github/workflows/build-test.yml

@@ -17,9 +17,6 @@ jobs:
       matrix:
         os: [windows-latest, ubuntu-latest, macos-latest]
         environment: [
-          # ci-min-deps,
-          # ci-sklearn11,
-          # ci-sklearn12,
           ci-sklearn13,
           ci-sklearn14,
           ci-sklearn15,

docs/installation.rst

@@ -3,7 +3,8 @@
 Installation
 ============
 
-To install skops from `PyPI <https://pypi.org/project/skops>`_, run the following command in your Python environment:
+To install skops from `PyPI <https://pypi.org/project/skops>`_, run the
+following command in your Python environment:
 
 .. code-block:: bash
 
@@ -13,7 +14,7 @@ Skops is also available in `conda-forge <https://anaconda.org/conda-forge/skops>
 
 .. code-block:: bash
 
-    conda install conda-forge::skops 
+    conda install conda-forge::skops
 
 If you're interested in contributing to skops, please follow the `contribution
 guideline <https://github.com/skops-dev/skops/blob/main/CONTRIBUTING.rst>`__