Release patch version of Reffy - v18.4.5

Dependencies bumped:
- Bump web-specs from 3.43.0 to 3.45.0 (#1802)
- Bump rollup from 4.35.0 to 4.38.0 (#1801)
- Bump undici from 7.4.0 to 7.6.0 (#1800)
- Bump respec from 35.2.2 to 35.3.0 (#1798)

Author: tidoust

package.json

@@ -1,6 +1,6 @@
 {
   "name": "reffy",
-  "version": "18.4.2",
+  "version": "18.4.5",
   "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",