Release minor version of Reffy - v13.1.0

New feature:
- Crawl using Node.js fetch function directly (#1300)

Dependencies bumped:
- Bump rollup from 3.23.0 to 3.24.0 (#1305)
- Bump puppeteer from 20.3.0 to 20.5.0 (#1299, #1302)
- Bump web-specs from 2.59.0 to 2.59.1 (#1304)

package.json

@@ -1,6 +1,6 @@
 {
   "name": "reffy",
-  "version": "13.0.3",
+  "version": "13.1.0",
   "description": "W3C/WHATWG spec dependencies exploration companion. Features a short set of tools to study spec references as well as WebIDL term definitions and references found in W3C specifications.",
   "repository": {
     "type": "git",