build: Move 'dev' and 'docs' to dependency-groups where they belong.

Author: defnull

.readthedocs.yaml

@@ -6,22 +6,19 @@ version: 2
 
 # Set the version of Python and other tools you might need
 build:
-   os: ubuntu-22.04
-   tools:
-     python: "3.12"
+  os: ubuntu-24.04
+  tools:
+    python: "3.14"
+  jobs:
+    install:
+      - pip install --upgrade pip
+      - pip install --group 'docs'
 
 # Build documentation in the docs/ directory with Sphinx
 sphinx:
-   configuration: docs/conf.py
+  configuration: docs/conf.py
 
 # If using Sphinx, optionally build your docs in additional formats such as PDF
 # formats:
 #    - pdf
 
-# Optionally declare the Python requirements required to build your docs
-python:
-  install:
-    - method: pip
-      path: .
-      extra_requirements:
-        - docs

pyproject.toml

@@ -37,20 +37,6 @@ Changelog = "https://multipart.readthedocs.io/en/latest/changelog.html"
 Source = "https://github.com/defnull/multipart"
 Issues = "https://github.com/defnull/multipart/issues"
 
-[project.optional-dependencies]
-dev = [
-    "pytest",
-    "pytest-cov",
-    "build",
-    "twine",
-    "tox",
-    "tox-uv",
-]
-docs = [
-    "sphinx>=8,<9",
-    "sphinx-autobuild",
-]
-
 [tool.flit.sdist]
 include = [
   "test/*.py",
@@ -78,3 +64,18 @@ description = "Run type check on code base"
 deps = ["mypy>=1.11.2", "types-cachetools>=5.5.0.20240820", "types-chardet>=5.0.4.6"]
 commands = [["mypy", "multipart.py"]]
 
+[dependency-groups]
+dev = [
+    "pytest",
+    "pytest-cov",
+    "build",
+    "twine",
+    "tox",
+    "tox-uv",
+]
+docs = [
+    "sphinx>=8,<9",
+    "sphinx-autobuild",
+]
+
+