[gemma4] make pytest and linters happy

pyproject.toml

@@ -11,7 +11,7 @@ dependencies = [
 ]
 requires-python = ">= 3.11"
 
-[project.optional-dependencies]
+[dependency-groups]
 dev = [
     "black",
     "mypy",
@@ -30,14 +30,15 @@ requires = [
 skillls = "skillls.main:main"
 
 
-[tools.black]
+[tool.black]
 line-length = 100
 target-version = "py311"
 include = "skillls"
 
-[tools.ruff]
+[tool.ruff]
 line-length = 100
-include = ['ALL']
+target-version = "py311"
+include = ["pyproject.toml", "skillls/**/*.py"]
 
 [tool.uv.sources]
 tree-sitter-skill = { git = "ssh://git@git.acereca.net/acereca/tree-sitter-skill.git" }