Add release metadata and Dockerfiles for the 25.0.0 current line.

• add v25 entry to versions.json
• copy v24 variants and update NODE_VERSION/checksum

Reference:

• https://nodejs.org/en/blog/release/v25.0.0
• https://github.com/nodejs/node/releases/tag/v25.0.0

Summary from GitHub Copilot:

This pull request introduces new Dockerfiles and entrypoint scripts for Node.js 25.0.0 images across multiple distributions and variants (Alpine 3.21, Alpine 3.22, Debian Bookworm, Bookworm Slim, and Buildpack-deps Bookworm). These images include both Node.js and Yarn, and provide a consistent entrypoint script to handle command execution logic.

The most important changes are:

Addition of Dockerfiles for Node.js 25.0.0:

• Added Dockerfiles for alpine:3.21, alpine:3.22, debian:bookworm-slim, and buildpack-deps:bookworm variants, each installing Node.js 25.0.0, Yarn 1.22.22, and setting up the appropriate user and environment. These Dockerfiles handle architecture detection, GPG verification, and cleanup for smaller images. [1] [2] [3] [4]

Consistent entrypoint script:

• Introduced a shared docker-entrypoint.sh script for all variants, which ensures that if the first argument is not a system command or starts with a dash, the command is run with node. This improves usability and matches common Docker Node.js image conventions.

Security and image size improvements:

• All Dockerfiles perform GPG verification of Node.js and Yarn downloads, remove unnecessary build dependencies, and clean up unused files to reduce image size and improve security. [1] [2] [3] [4]

User and permissions setup:

• Each image creates a non-root node user and group with UID/GID 1000, following best practices for container security. [1] [2] [3] [4]

Platform architecture support:

• The Dockerfiles detect the target architecture at build time and adjust the Node.js and OpenSSL binaries accordingly, enabling multi-architecture support. [1] [2] [3] [4]