Drop Python 3.10 support (#2932)

Contributes to rapidsai/build-planning#246

Finishes the work of dropping Python 3.10 support.

This project stopped building / testing against Python 3.10 as of rapidsai/shared-workflows#494
This PR updates configuration and docs to reflect that.

## Followups before merging

Check that there are no remaining uses like this:

```shell
git grep -E '3\.10'
git grep '310'
git grep 'py310'
```

Authors:
  - Gil Forsyth (https://github.com/gforsyth)

Approvers:
  - Bradley Dice (https://github.com/bdice)

URL: #2932

Author: gforsyth

dependencies.yaml

@@ -341,10 +341,6 @@ dependencies:
     specific:
       - output_types: conda
         matrices:
-          - matrix:
-              py: "3.10"
-            packages:
-              - python=3.10
           - matrix:
               py: "3.11"
             packages:
@@ -359,7 +355,7 @@ dependencies:
               - python=3.13
           - matrix:
             packages:
-              - python>=3.10,<3.14
+              - python>=3.11,<3.14
   run_pylibraft:
     common:
       - output_types: [conda, pyproject, requirements]

python/libraft/pyproject.toml

@@ -18,7 +18,7 @@ authors = [
     { name = "NVIDIA Corporation" },
 ]
 license = "Apache-2.0"
-requires-python = ">=3.10"
+requires-python = ">=3.11"
 dependencies = [
     "cuda-toolkit[cublas,curand,cusolver,cusparse]>=12,<14",
     "librmm==26.4.*,>=0.0.0a0",

python/pylibraft/pyproject.toml

@@ -18,7 +18,7 @@ authors = [
     { name = "NVIDIA Corporation" },
 ]
 license = "Apache-2.0"
-requires-python = ">=3.10"
+requires-python = ">=3.11"
 dependencies = [
     "cuda-python>=13.0.1,<14.0",
     "libraft==26.4.*,>=0.0.0a0",
@@ -28,7 +28,6 @@ dependencies = [
 classifiers = [
     "Intended Audience :: Developers",
     "Programming Language :: Python",
-    "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",

python/raft-dask/pyproject.toml

@@ -18,7 +18,7 @@ authors = [
     { name = "NVIDIA Corporation" },
 ]
 license = "Apache-2.0"
-requires-python = ">=3.10"
+requires-python = ">=3.11"
 dependencies = [
     "dask-cuda==26.4.*,>=0.0.0a0",
     "distributed-ucxx==0.49.*,>=0.0.0a0",
@@ -29,7 +29,6 @@ dependencies = [
 classifiers = [
     "Intended Audience :: Developers",
     "Programming Language :: Python",
-    "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",