downgrade to java version 25

Author: zak905

.github/workflows/pr_checks.yaml

@@ -15,7 +15,7 @@ jobs:
       - uses: actions/setup-java@v5
         with:
           distribution: 'temurin'
-          java-version: '26'
+          java-version: '25'
       - name: cache local Maven repository
         uses: actions/cache@v4
         with:

dashboard-service/Dockerfile

@@ -9,7 +9,7 @@
 
 #RUN mvn clean package
 
-FROM openjdk:26-ea-trixie
+FROM openjdk:25-ea-1-slim
 
 ARG VERSION=0.1