Change to ubuntu:latest and clean up

Author: sarahchen6

.github/workflows/ci.yml

@@ -7,9 +7,7 @@ on:
     branches:
       - master
   schedule:
-    # Tuesday at 10. One day after the CircleCI scheduled upddate
-    # See: https://github.com/CircleCI-Public/cimg-base/blob/main/.circleci/schedule.json
-    - cron: '0 10 * * 2' 
+    - cron: '0 0 * * 0' 
   workflow_dispatch:
 
 jobs:

Dockerfile

@@ -1,7 +1,7 @@
 # syntax=docker/dockerfile:1.6
 
 # Intermediate image used to prune cruft from JDKs and squash them all.
-FROM ubuntu:24.04 AS all-jdk
+FROM ubuntu:latest AS all-jdk
 
 COPY --from=eclipse-temurin:8-jdk-jammy /opt/java/openjdk /usr/lib/jvm/8
 COPY --from=eclipse-temurin:11-jdk-jammy /opt/java/openjdk /usr/lib/jvm/11
@@ -75,8 +75,8 @@ COPY --from=all-jdk /usr/lib/jvm/17 /usr/lib/jvm/17
 COPY --from=all-jdk /usr/lib/jvm/21 /usr/lib/jvm/21
 
 # Base image with minimunm requirenents to build the project.
-# Based on CircleCI Base Image with Ubuntu 22.04.3 LTS, present in most runners.
-FROM ubuntu:24.04 AS base
+# Based on the latest Ubuntu LTS image.
+FROM ubuntu:latest AS base
 
 # https://docs.github.com/en/packages/learn-github-packages/connecting-a-repository-to-a-package
 LABEL org.opencontainers.image.source=https://github.com/DataDog/dd-trace-java-docker-build