Make black and isort mandatory for now

Most users will probably have a nicer experience with formatted stubs
out of the box.

Author: lagru

.github/workflows/ci.yml

@@ -61,7 +61,7 @@ jobs:
 
       - name: Install package
         run: |
-          python -m pip install .[test,optional]
+          python -m pip install .[test]
           python -m docstub --version
           docstub --help
 

pyproject.toml

@@ -31,13 +31,11 @@ dependencies = [
   "click >=8.1.7",
   "libcst >=1.3.1",
   "lark >=1.1.9",
-]
-
-[project.optional-dependencies]
-optional = [
   "black >=24.4.2",
   "isort >=5.13.2",
 ]
+
+[project.optional-dependencies]
 dev = [
   "pre-commit >=3.7",
   "ipython",