Add prog arguments to ArgumentParser to prevent the wrong inferred name

when calling like 'python -m cibuildwheel', we get errors like

usage: __main__.py [-h] [--platform {auto,linux,macos,windows}] [--archs ARCHS] [--output-dir OUTPUT_DIR] [--config-file CONFIG_FILE]
                   [--print-build-identifiers] [--allow-empty] [--prerelease-pythons]
                   [package_dir]
__main__.py: error: unrecognized arguments: --sad

With this change, we get error outputs like:

usage: cibuildwheel [-h] [--platform {auto,linux,macos,windows}] [--archs ARCHS] [--output-dir OUTPUT_DIR] [--config-file CONFIG_FILE]
                    [--print-build-identifiers] [--allow-empty] [--prerelease-pythons]
                    [package_dir]
cibuildwheel: error: unrecognized arguments: --asda

cibuildwheel/__main__.py

@@ -28,6 +28,7 @@ def main() -> None:
     platform: PlatformName
 
     parser = argparse.ArgumentParser(
+        prog="cibuildwheel",
         description="Build wheels for all the platforms.",
         epilog="""
             Most options are supplied via environment variables or in

cibuildwheel/from_sdist.py

@@ -11,6 +11,7 @@ from cibuildwheel.util import format_safe
 
 def main() -> None:
     parser = argparse.ArgumentParser(
+        prog="cibuildwheel-from-sdist",
         description=textwrap.dedent(
             """
             Build wheels from an sdist archive.