Merge pull request #46531 from deBFM/docs/mprc-link

Docs: Updated link to "MicroProfile Rest Client Spec"

Author: gsmet

docs/src/main/asciidoc/rest-client.adoc

@@ -2130,7 +2130,7 @@ To change this behavior, set the `quarkus.rest-client.scope` property to the ful
 
 == Further reading
 
- * link:https://download.eclipse.org/microprofile/microprofile-rest-client-2.0/microprofile-rest-client-spec-2.0.html[MicroProfile Rest Client specification]
+ * link:https://download.eclipse.org/microprofile/microprofile-rest-client-4.0/microprofile-rest-client-spec-4.0.html[MicroProfile Rest Client specification]
 
 == Configuration Reference