Update Dockerfile

Dockerfile

@@ -7,14 +7,14 @@ RUN apt-get update && \
     apt-get install -y \
     git \
     wget \
-    openjdk-17-jre-headless \
+    openjdk-21-jre-headless \
     build-essential \
     python3-dev \
     gcc \
     && apt-get clean
 
-# Set Java Home (Updated for Java 17)
-ENV JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64
+# Set Java Home (Updated for Java 21)
+ENV JAVA_HOME=/usr/lib/jvm/java-21-openjdk-amd64
 
 # 3. Set working directory
 WORKDIR /app