Fix HBase Docker build issues and update dist Dockerfile

- Update HBase base image from openjdk:8-jre-buster to openjdk:8-jre-bullseye
  to fix apt-get update failures (buster repositories are no longer accessible)
- Update default HBase version from 2.5.0 to 2.6.0 to match the version
  used in HBaseContainer.java
- Update dist builder image from debian:buster-slim to debian:bullseye-slim
  to prevent similar apt-get issues

This resolves the Docker build error:
'The command '/bin/sh -c apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y socat' returned a non-zero code: 100'

Author: openhands-agent

janusgraph-dist/docker/Dockerfile

@@ -14,7 +14,7 @@
 
 ARG BASE_IMAGE=eclipse-temurin:11-jre
 
-FROM debian:buster-slim as builder
+FROM debian:bullseye-slim as builder
 
 ARG TARGETARCH
 ARG JANUS_VERSION=1.0.0-SNAPSHOT

janusgraph-hbase/docker/Dockerfile

@@ -14,7 +14,7 @@
 
 FROM debian:bookworm-20240211 as builder
 
-ARG HBASE_VERSION=2.5.0
+ARG HBASE_VERSION=2.6.0
 ARG HBASE_DIST="https://archive.apache.org/dist/hbase"
 
 RUN apt-get update && \
@@ -27,7 +27,7 @@ RUN rm -rf ./docs ./LEGAL ./*.txt ./*/*.cmd
 COPY ./hbase-site.xml /opt/hbase/conf/hbase-site.xml
 COPY ./hbase-policy.xml /opt/hbase/conf/hbase-policy.xml
 
-FROM openjdk:8-jre-buster
+FROM openjdk:8-jre-bullseye
 
 ARG HBASE_UID=1000
 ARG HBASE_GID=1000