Adapt download.py to run as a package script

scripts/component_hash_update/src/component_hash_update/download.py

@@ -318,6 +318,10 @@ def download_hash(only_downloads: [str]) -> None:
         yaml.dump(data, checksums_yml)
         logger.info("Updated %s", CHECKSUMS_YML)
 
+
+def main():
+
+    logging.basicConfig(stream=sys.stdout, level=logging.INFO)
     parser = argparse.ArgumentParser(description=f"Add new patch versions hashes in {CHECKSUMS_YML}",
                                      formatter_class=argparse.RawTextHelpFormatter,
                                      epilog=f"""