Conda environment update, and devcontainer setup

[douglowe]

This adds a devcontainer config file for VS Code, and also fixes the conda environment - pinning setuptools to version 79.0.1 to avoid the removal of pkg_resources from that library.

[Copilot]

Pull request overview

This PR updates the project’s Conda environment to avoid pkg_resources breakage by pinning setuptools, and introduces a VS Code devcontainer setup to make onboarding/development more reproducible.

Changes:

• Update environment.yml (bump wrf-python, pin setuptools==79.0.1).
• Add .devcontainer/ configuration (Dockerfile + devcontainer.json) to build a containerized dev environment.
• Ignore the generated devcontainer lock file in .gitignore.

Reviewed changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
environment.yml	Updates dependency versions and pins setuptools for compatibility.
.gitignore	Ignores .devcontainer/devcontainer-lock.json.
.devcontainer/noop.txt	Adds a placeholder text file related to devcontainer build intent.
.devcontainer/Dockerfile	Builds an Anaconda-based devcontainer image and creates the Conda environment from environment.yml.
.devcontainer/devcontainer.json	Configures VS Code devcontainer build context and Dockerfile.

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