Upgrade org.clojure/core.cache dependency

That version fixes a couple of cache-stampede issues.

Author: iarenaza

CHANGELOG.md

@@ -4,6 +4,9 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 
 ## [UNRELEASED]
+### Changed
+- Upgraded org.clojure/core.cache to 1.2.263, that fixes a couple of cache-stampede issues.
+
 ## [0.2.2] - 2026-02-23
 ### Fixed
 - Github actions yaml file syntax

project.clj

@@ -4,7 +4,7 @@
   :license {:name "Eclipse Public License"
             :url "http://www.eclipse.org/legal/epl-v10.html"}
   :dependencies [[org.clojure/clojure "1.12.4"]
-                 [org.clojure/core.cache "1.2.254"]
+                 [org.clojure/core.cache "1.2.263"]
                  [criterium/criterium "0.4.6"]
                  [org.clojure/data.priority-map "1.2.1"]]
   :deploy-repositories [["snapshots" {:url "https://clojars.org/repo"