Update JDK versions in ci.yml

* Add JDK 23, for building multi-release jars.
* Update references to 24 to 25
* Update latest STS release to 23

Author: cushon

.github/workflows/ci.yml

@@ -38,7 +38,7 @@ jobs:
             java: 21
             experimental: false
           - os: ubuntu-latest
-            java: 22
+            java: 23
             experimental: false
           - os: ubuntu-latest
             java: EA
@@ -58,7 +58,13 @@ jobs:
           java-version: 17
           distribution: 'zulu'
           cache: 'maven'
-      - name: 'Set up JDK 24 from jdk.java.net'
+      - name: 'Set up JDK 23'
+        uses: actions/setup-java@v4
+        with:
+          java-version: 23
+          distribution: 'zulu'
+          cache: 'maven'
+      - name: 'Set up JDK 25 from jdk.java.net'
         uses: oracle-actions/setup-java@v1
         with:
           website: jdk.java.net
@@ -102,6 +108,12 @@ jobs:
           website: jdk.java.net
           release: 25
           cache: 'maven'
+      - name: 'Set up JDK 23'
+        uses: actions/setup-java@v4
+        with:
+          java-version: 23
+          distribution: 'zulu'
+          cache: 'maven'
       - name: 'Set up JDK 17'
         uses: actions/setup-java@v4
         with:
@@ -128,11 +140,17 @@ jobs:
     steps:
       - name: 'Check out repository'
         uses: actions/checkout@v4
-      - name: 'Set up JDK 24 from jdk.java.net'
+      - name: 'Set up JDK 25 from jdk.java.net'
         uses: oracle-actions/setup-java@v1
         with:
           website: jdk.java.net
-          release: 24
+          release: 25
+          cache: 'maven'
+      - name: 'Set up JDK 23'
+        uses: actions/setup-java@v4
+        with:
+          java-version: 23
+          distribution: 'zulu'
           cache: 'maven'
       - name: 'Set up JDK 17'
         uses: actions/setup-java@v4