build: run CI on Java 25 (#2034)

Author: hugo-vrijswijk

.github/setup/action.yml

@@ -5,7 +5,7 @@ description: "Set up Java, sbt and cache for CI"
 inputs:
   java-version:
     description: "The Java version to use"
-    default: "21"
+    default: "25"
     required: false
   cache:
     description: "The cache to use"

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        java-version: [17, 21]
+        java-version: [17, 25]
         os: ['ubuntu-latest', 'windows-latest']
     runs-on: ${{ matrix.os }}