Use setup Java for zulu 21

Author: PEZ

.github/workflows/build-and-test.yml

@@ -24,6 +24,12 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Prepare java
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'zulu'
+          java-version: '21'
+
       - name: Install clojure tools
         uses: DeLaGuardo/[email protected]
         with: