fix: Fix pytest plugin declaration so it can be used without requiring pytest_plugins (#1943)

Author: edgarrmondragon

cookiecutter/mapper-template/{{cookiecutter.mapper_id}}/tests/conftest.py

@@ -199,8 +199,8 @@ module = [
 requires = ["poetry-core>=1.0.0"]
 build-backend = "poetry.core.masonry.api"
 
-[tool.poetry.scripts]
-pytest11 = { reference = "singer_sdk:testing.pytest_plugin", extras = ["testing"], type = "console" }
+[tool.poetry.plugins."pytest11"]
+singer_testing = "singer_sdk.testing.pytest_plugin"
 
 [tool.ruff]
 exclude = [

cookiecutter/tap-template/{{cookiecutter.tap_id}}/tests/conftest.py

@@ -24,8 +24,6 @@
 
 SYSTEMS = {"linux", "darwin", "windows"}
 
-pytest_plugins = ("singer_sdk.testing.pytest_plugin",)
-
 
 def pytest_collection_modifyitems(config: Config, items: list[pytest.Item]):
     rootdir = pathlib.Path(config.rootdir)