Add install_data in distutils-stubs from setuptools (#12889)

stubs/setuptools/distutils/__init__.pyi

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+from typing import Final
+
+__version__: Final[str]

stubs/setuptools/distutils/command/install_data.pyi

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+from setuptools._distutils.command.install_data import *

stubs/setuptools/setuptools/_distutils/__init__.pyi

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+from typing import Final
+
+__version__: Final[str]

stubs/setuptools/setuptools/_distutils/command/install_data.pyi

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+from _typeshed import Incomplete
+
+from ..cmd import Command
+
+class install_data(Command):
+    description: str
+    user_options: Incomplete
+    boolean_options: Incomplete
+    install_dir: Incomplete
+    outfiles: Incomplete
+    root: Incomplete
+    force: bool
+    data_files: Incomplete
+    warn_dir: bool
+    def initialize_options(self) -> None: ...
+    def finalize_options(self) -> None: ...
+    def run(self) -> None: ...
+    def get_inputs(self): ...
+    def get_outputs(self): ...