fix: 'invalid kind provided' when defining usable type (#305)

Author: rhoerr

supported-version/dist/index.js

@@ -5,6 +5,7 @@ export const KNOWN_KINDS = {
     'currently-supported': true,
     'latest': true,
     'custom': true,
+    'usable': true,
     'nightly': true,
     'all': true,
 }