Wrong regex to match versions

The regex that matches available versions in `list-all` seems to be wrong:
https://github.com/asdf-community/asdf-clojure/blob/490074c521d5968a7ed85656fc325570343742da/bin/list-all#L14

Assuming that Clojure versions should be composed of 4 numeric parts separated by dots, it should be something like `[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+`.

Inspect bin/list-all at line 14 and compare the version-matching regex with the issue's four-part numeric version format. Confirm the matcher accepts the intended Clojure versions and rejects other formats; the issue is done when list-all reports the correct available versions.

Written by the indexing model from the issue text.