fix(serverlibrary): correct file structure agian

serverlibrary/
├── pyproject.toml
└── src/
└── serverlibrary/
├── __init__.py
└── core.py

add src location to pyproject

serverlibrary/pyproject.toml

@@ -1,13 +1,16 @@
 [build-system]
-requires = ["setuptools", "wheel"]
+requires = ["setuptools>=61", "wheel"]
 build-backend = "setuptools.build_meta"
 
 [project]
 name = "serverlibrary"
 version = "0.1.0"
 description = "Serverhost Python library"
-authors = [{ name = "Lucas" }]
+authors = [
+    { name = "Lucas" }
+]
 readme = "README.md"
 requires-python = ">=3.10"
-[tool.setuptools]
-py-modules = ["serverlibrary"]
+
+[tool.setuptools.packages.find]
+where = ["src"]