Move public skills to a directory to avoid downloading the whole repo (#1519)

* Move to skill directory

* Avoid moved skill with test

Author: ntjohnson1

dev/release/rat_exclude_files.txt

@@ -49,4 +49,4 @@ benchmarks/tpch/create_tables.sql
 **/.cargo/config.toml
 uv.lock
 examples/tpch/answers_sf1/*.tbl
-SKILL.md
+**/SKILL.md