Update Clojure workflows

Author: dakrone

.github/workflows/clojure.yml

@@ -11,8 +11,8 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: ["8", "11", "14"]
-        clojure: ["1.6", "1.7", "1.8", "1.9", "1.10"]
+        java: ["14", "17", "21"]
+        clojure: ["1.8", "1.9", "1.10", "1.11"]
 
     name: Java ${{ matrix.java }} Clojure ${{ matrix.clojure }}
     steps: