Cleanup - removed older clojure, JDK bumped to 21

Author: jaju-smarsh

project.clj

@@ -5,7 +5,7 @@
   :url "https://github.com/jaju/lucene-clj"
   :license {:name "Eclipse Public License"
             :url  "http://www.eclipse.org/legal/epl-v10.html"}
-  :dependencies [[org.clojure/clojure "1.11.1"]
+  :dependencies [[org.clojure/clojure "1.11.4"]
                  [org.apache.lucene/lucene-core ~lucene-version]
                  [org.apache.lucene/lucene-queryparser ~lucene-version]
                  [org.apache.lucene/lucene-analysis-common ~lucene-version]
@@ -15,7 +15,7 @@
 
   :source-paths ["src/clj"]
   :java-source-paths ["src/java"]
-  :javac-options ["-target" "8" "-source" "8" "-deprecation" "-Xlint:-options"]
+  :javac-options ["-target" "21" "-source" "21" "-deprecation" "-Xlint:-options"]
   :java-opts ["--add-modules", "jdk.incubator.vector", "--enable-native-access=ALL-UNNAMED"]
 
   :plugins [[lein-marginalia "0.9.1"]]
@@ -28,9 +28,7 @@
              :test {:dependencies   [[org.clojure/data.csv "1.1.0"]]
                     :resource-paths ["test-resources"]}
 
-             :1.10  {:dependencies [[org.clojure/clojure "1.10.3"]]}
-             :1.9  {:dependencies [[org.clojure/clojure "1.9.0"]]}
-             :1.8  {:dependencies [[org.clojure/clojure "1.8.0"]]}}
+             :1.10  {:dependencies [[org.clojure/clojure "1.10.3"]]}}
 
   :deploy-repositories [["releases" :clojars]
                         ["snapshots" :clojars]])