fix: wrongly changed name

Makefile

@@ -22,15 +22,14 @@ build: clean deps
 	@# `make build` allows us to be be sure tests are run against the packaged version
 	@# of OpenFisca-Extension-Template, the same we put in the hands of users and reusers.
 	python -m build
-	pip uninstall --yes openfisca-country-template
+	pip uninstall --yes openfisca-country_template
 	find dist -name "*.whl" -exec pip install --force-reinstall {}[dev] \;
 
 format:
 	@# Do not analyse .gitignored files.
 	@# `make` needs `$$` to output `$`. Ref: http://stackoverflow.com/questions/2382764.
 	ruff format `git ls-files | grep "\.py$$"`
 	isort `git ls-files | grep "\.py$$"`
-	pyproject-fmt pyproject.toml
 
 lint:
 	@# Do not analyse .gitignored files.

pyproject.toml

@@ -3,7 +3,7 @@ build-backend = "setuptools.build_meta"
 requires = [ "setuptools>=61" ]
 
 [project]
-name = "openfisca-country-template"
+name = "openfisca-country_template"
 version = "7.1.7"
 description = "OpenFisca Rules as Code model for Country-Template."
 readme = "README.md"
@@ -28,7 +28,6 @@ dependencies = [
 ]
 optional-dependencies.dev = [
     "isort>=5.13.2,<6",
-    "pyproject-fmt>=2.3.1,<3",
     "ruff>=0.6.9,<1",
     "ruff-lsp>=0.0.57,<1",
     "yamllint>=1.35.1",
@@ -110,7 +109,7 @@ commands_pre = [
         "install",
         "--find-links",
         ".",
-        "openfisca_country_template",
+        "openfisca-country_template",
     ],
 ]
 
@@ -124,7 +123,7 @@ commands_pre = [
         "install",
         "--find-links",
         ".",
-        "openfisca_country_template[dev]",
+        "openfisca-country_template[dev]",
     ],
 ]