Chores
- Make action skip when there is no release ([83](https://github.com/crypkit/blockapi/pull/83),
[`4de25c2`](https://github.com/crypkit/blockapi/commit/4de25c283f4174ada0c26e3865ee6cd5c3b566e4))
- Upgrade actions ([80](https://github.com/crypkit/blockapi/pull/80),
[`d62d7db`](https://github.com/crypkit/blockapi/commit/d62d7db78afc8d83128bac12a88dd7b01661168e))
Features
- Blockchain mapping ([82](https://github.com/crypkit/blockapi/pull/82),
[`f84824f`](https://github.com/crypkit/blockapi/commit/f84824f2f496c660861dfc3c133b8ec3af5ca7ca))