bump xitdb

Author: radarroark

deps.edn

@@ -1,6 +1,6 @@
 {:paths ["src" "test"]
  :deps  {org.clojure/clojure        {:mvn/version "1.12.0"}
-         io.github.radarroark/xitdb {:mvn/version "0.20.0"}}
+         io.github.radarroark/xitdb {:mvn/version "0.28.0"}}
 
  :aliases
  {:test  {:extra-deps {io.github.cognitect-labs/test-runner