[ci] Remove tune-sklearn doc dependency (#40721) (#41250)

This unpins `tune-sklearn` as a dependency of the ray docs build. This updates any auto-generated API references with links to a self-contained docs page in the `tune-sklearn` repo.

Signed-off-by: Justin Yu <justinvyu@anyscale.com>
Signed-off-by: Archit Kulkarni <archit@anyscale.com>
Co-authored-by: Justin Yu <justinvyu@anyscale.com>

Author: architkulkarni

doc/requirements-doc.txt

@@ -1,6 +1,6 @@
 # Production requirements. This is what readthedocs.com picks up
 
-git+https://github.com/ray-project/tune-sklearn@master#tune-sklearn
+ray
 watchfiles # Required because sphinx-click doesn't support mocking
 
 # Syntax highlighting

doc/source/tune/api/api.rst

@@ -25,7 +25,6 @@ on `Github`_.
     logging.rst
     callbacks.rst
     env.rst
-    sklearn.rst
     integration.rst
     internals.rst
     client.rst

doc/source/tune/api/sklearn.rst

@@ -55,14 +55,14 @@
     "In this tutorial, we'll cover ``tune-sklearn``, a drop-in replacement for Scikit-Learn's model selection module\n",
     "with state-of-the-art optimization features such as early stopping and Bayesian Optimization.\n",
     "\n",
-    "```{tip} \n",
-    "Check out the [tune-sklearn code](https://github.com/ray-project/tune-sklearn) and {ref}`documentation <tune-sklearn-docs>`.\n",
+    "```{tip}\n",
+    "Check out the [tune-sklearn homepage](https://github.com/ray-project/tune-sklearn) and [documentation](https://github.com/ray-project/tune-sklearn/tree/master/docs).\n",
     "```\n",
     "\n",
     "## Overview\n",
     "\n",
     "``tune-sklearn`` is a module that integrates Ray Tune's hyperparameter tuning and scikit-learn's Classifier API. \n",
-    "``tune-sklearn`` has two APIs: {ref}`TuneSearchCV <tunesearchcv-docs>`, and {ref}`TuneGridSearchCV <tunegridsearchcv-docs>`.\n",
+    "``tune-sklearn`` has two APIs: [TuneSearchCV](https://github.com/ray-project/tune-sklearn/tree/master/docs/tune_search.md), and [TuneGridSearchCV](https://github.com/ray-project/tune-sklearn/tree/master/docs/tune_gridsearch.md).\n",
     "They are drop-in replacements for Scikit-learn's RandomizedSearchCV and GridSearchCV, so you only need to change\n",
     "less than 5 lines in a standard Scikit-Learn script to use the API.\n",
     "\n",

doc/source/tune/examples/tune-sklearn.ipynb

@@ -600,7 +600,7 @@ google-api-python-client==2.65.0
     # via -r /ray/ci/../python/requirements/test-requirements.txt
 google-apitools==0.5.32
     # via gsutil
-google-auth==2.23.3
+google-auth==2.23.4
     # via
     #   google-api-core
     #   google-api-python-client
@@ -615,7 +615,7 @@ google-auth-httplib2==0.1.1
     # via google-api-python-client
 google-auth-oauthlib==0.4.6
     # via tensorboard
-google-cloud-bigquery==3.12.0
+google-cloud-bigquery==3.13.0
     # via -r /ray/ci/../python/requirements/ml/data-test-requirements.txt
 google-cloud-bigquery-storage==2.22.0
     # via -r /ray/ci/../python/requirements/ml/data-test-requirements.txt
@@ -663,7 +663,7 @@ graphviz==0.20.1
     # via catboost
 greenlet==3.0.0
     # via sqlalchemy
-grpcio==1.59.0 ; sys_platform != "darwin"
+grpcio==1.59.2 ; sys_platform != "darwin"
     # via
     #   -r /ray/ci/../python/requirements.txt
     #   aim
@@ -1018,7 +1018,7 @@ lz4==4.3.2
     # via -r /ray/ci/../python/requirements.txt
 mako==1.2.4
     # via alembic
-markdown==3.5
+markdown==3.5.1
     # via
     #   mlflow
     #   tensorboard
@@ -1846,6 +1846,7 @@ pyzmq==24.0.1
 querystring-parser==1.2.4
     # via mlflow
     # via
+    #   -r /ray/ci/../doc/requirements-doc.txt
     #   raydp
     #   tune-sklearn
     #   xgboost-ray
@@ -2027,7 +2028,7 @@ send2trash==1.8.2
     #   notebook
 sentencepiece==0.1.96
     # via -r /ray/ci/../python/requirements/ml/train-test-requirements.txt
-sentry-sdk==1.32.0
+sentry-sdk==1.33.1
     # via
     #   comet-ml
     #   wandb
@@ -2389,10 +2390,7 @@ transformers==4.19.1
     # via -r /ray/ci/../python/requirements/ml/core-requirements.txt
 trustme==0.9.0
     # via -r /ray/ci/../python/requirements/test-requirements.txt
-tune-sklearn @ git+https://github.com/ray-project/tune-sklearn@master
-    # via
-    #   -r /ray/ci/../doc/requirements-doc.txt
-    #   -r /ray/ci/../python/requirements/ml/tune-requirements.txt
+    # via -r /ray/ci/../python/requirements/ml/tune-requirements.txt
 typeguard==2.13.3
     # via ax-platform
 typer==0.9.0
@@ -2505,7 +2503,7 @@ watchfiles==0.19.0
     #   uvicorn
 wcmatch==8.5
     # via semgrep
-wcwidth==0.2.8
+wcwidth==0.2.9
     # via
     #   blessed
     #   prompt-toolkit
@@ -2596,4 +2594,4 @@ zoopt==0.4.1
 
 # The following packages are considered to be unsafe in a requirements file:
 # pip
-# setuptools
+# setuptools