Update Catalyst Node.js requirement from 20.x to 24.x (#1284)

# [DEVDOCS-]

Catalyst v1.5.0 introduced a Node.js 24 requirement (enforced via
`engines` in `package.json` and `.nvmrc`), but two prerequisite docs
still referenced Node.js 20.x.

## What changed?
* Updates Node.js version requirement from `20.x` to `24.x` in
`docs/storefront/catalyst/getting-started/local-development.mdx`
* Updates Node.js version requirement from `20.x` to `24.x` in
`docs/storefront/catalyst/development/prerequisites.mdx`
* Updates Corepack documentation links from `latest-v20.x` to
`latest-v24.x` in both files

## Release notes draft
* Updated Catalyst prerequisite docs to reflect the Node.js 24
requirement introduced in v1.5.0.

## Anything else?
The release notes for v1.5.0 already correctly document this requirement
— only the standalone prerequisites/local-development pages were stale.

ping {names}

<!-- START COPILOT CODING AGENT TIPS -->
---

🔒 GitHub Advanced Security automatically protects Copilot coding agent
pull requests. You can protect all pull requests by enabling Advanced
Security for your repositories. [Learn more about Advanced
Security.](https://gh.io/cca-advanced-security)

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: chanceaclark <10539418+chanceaclark@users.noreply.github.com>

Author: Copilot

docs/storefront/catalyst/development/prerequisites.mdx

@@ -2,13 +2,13 @@
 
 Before you begin, ensure you have met the prerequisites listed below on your local machine.
 
-### Node.js version `20.x`
+### Node.js version `24.x`
 
-Catalyst currently supports Node.js version `20.x` ([click here to download Node.js](https://nodejs.org/en/download/package-manager))
+Catalyst currently supports Node.js version `24.x` ([click here to download Node.js](https://nodejs.org/en/download/package-manager))
 
 ### Corepack-enabled `pnpm`
 
-Node.js version `20.x` ships with Corepack by default; you should be able to run `corepack enable` from your terminal to meet this prerequisite (more information on the [official Node.js Corepack documentation](https://nodejs.org/docs/latest-v20.x/api/corepack.html))
+Node.js version `24.x` ships with Corepack by default; you should be able to run `corepack enable` from your terminal to meet this prerequisite (more information on the [official Node.js Corepack documentation](https://nodejs.org/docs/latest-v24.x/api/corepack.html))
 
 ### Git version `2.35.x` or later
 

docs/storefront/catalyst/getting-started/local-development.mdx

@@ -20,13 +20,13 @@ Lastly, you'll want to push the source code into your own GitHub repository. Let
 
 Before you begin, ensure you have met the prerequisites listed below on your local machine.
 
-### Node.js version `20.x`
+### Node.js version `24.x`
 
-Catalyst currently supports Node.js version `20.x` ([click here to download Node.js](https://nodejs.org/en/download/package-manager))
+Catalyst currently supports Node.js version `24.x` ([click here to download Node.js](https://nodejs.org/en/download/package-manager))
 
 ### Corepack-enabled `pnpm`
 
-Node.js version `20.x` ships with Corepack by default; you should be able to run `corepack enable` from your terminal to meet this prerequisite (more information on the [official Node.js Corepack documentation](https://nodejs.org/docs/latest-v20.x/api/corepack.html))
+Node.js version `24.x` ships with Corepack by default; you should be able to run `corepack enable` from your terminal to meet this prerequisite (more information on the [official Node.js Corepack documentation](https://nodejs.org/docs/latest-v24.x/api/corepack.html))
 
 ### Git version `2.35.x` or later