chore: import upstream snapshot with attribution

dev/validate_release_version.py

@@ -0,0 +1,25 @@
+import argparse
+
+from packaging.version import Version
+
+
+def parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "--version", help="Release version to validate, e.g., '1.2.3'", required=True
+    )
+    return parser.parse_args()
+
+
+def main() -> None:
+    args = parse_args()
+    version = Version(args.version)
+    msg = (
+        f"Invalid release version: '{args.version}', "
+        "must be in the format of <major>.<minor>.<micro>"
+    )
+    assert len(version.release) == 3, msg
+
+
+if __name__ == "__main__":
+    main()