use --group in RTD config

Author: 2bndy5

.pre-commit-config.yaml

@@ -8,4 +8,3 @@ repos:
       - id: check-yaml
         # special mkdocs config to include inline icons fails (see `pymdownx.emoji` in mkdocs.yml)
         args: ['--unsafe'] # use `--unsafe` to workaround yaml loading
-      - id: requirements-txt-fixer

.readthedocs.yaml

@@ -6,14 +6,12 @@ version: 2
 
 # Set the version of Python and other tools you might need
 build:
-  os: ubuntu-22.04
+  os: ubuntu-24.04
   tools:
-    python: "3.12"
+    python: latest
+  jobs:
+    install:
+      - pip install --group 'docs'
 
 mkdocs:
   configuration: mkdocs.yml
-
-# Optionally declare the Python requirements required to build your docs
-python:
-  install:
-  - requirements: docs/requirements.txt