chore: reorganize pyproject

Author: SemyonSinchenko

python/pyproject.toml

@@ -45,9 +45,17 @@ classifiers = [
 
 [tool.poetry.group.docs]
 optional = true
+dependencies = [
+  pdoc = "*",
+]
 
-[tool.poetry.group.docs.dependencies]
-pdoc = "*"
+[tool.poetry.group.test]
+optional = true
+dependencies = [
+  "pandas ~= 2.0",
+  "typing_extensions ~= 4.0",
+  "pytest ~= 7.2",
+]
 
 [tool.scikit-build]
 build-dir = "build"
@@ -60,10 +68,6 @@ include = [
   "../NOTICE",
 ]
 
-[project.optional-dependencies]
-test = ["pandas ~= 2.0", "typing_extensions ~= 4.0", "pytest ~= 7.2"]
-docs = ["pdoc"]
-
 [project.scripts]
 graphar = "cli.graphar_cli:main"