chore: bump devcontainer to Ubuntu 22.04 to resolve arm64 incompatibility

[AFRUITPIE]

Pre-flight checklist

• I have read the Contributing Guidelines on pull requests.
• If this is a code change: I have written unit tests and/or added dogfooding pages to fully verify the new behavior.
• If this is a new API or substantial change: the PR has an accompanying issue (closes #0000) and the maintainers have approved on my working plan.

Motivation

Cloning Docusaurus into a dev container volume (explained in greater detail here) failed on arm64 devices like my Apple Silicon Mac:

Error fetching image details: No manifest found for mcr.microsoft.com/vscode/devcontainers/base:ubuntu-20.04.
Start: Run: docker pull mcr.microsoft.com/vscode/devcontainers/base:ubuntu-20.04
Looking up Docker credential helper for 'mcr.microsoft.com'.
ubuntu-20.04: Pulling from vscode/devcontainers/base
no matching manifest for linux/arm64/v8 in the manifest list entries

This chore updates the dev container config to 22.04 for arm64 support and switches to the new devcontainers images from the soon-to-be-archived vscode-dev-containers (microsoft/vscode-dev-containers#1762).

Test Plan

Test Plan is a bit tough to provide here since it's essentially an "it didn't work on my machine" situation. It does work on my machine now though ✨

If the maintainers have access to an Apple Silicon Mac or other arm64 machine, you can also verify for yourselves that the new dev container environment works by following Microsoft's guide and cloning my AFRUITPIE/docusaurus fork into a dev container volume.

Related issues/PRs

This issue only took a less time to debug and resolve than it would to create an issue, so I haven't created one. If the maintainers require one, I'm happy to create it.

[netlify]

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[github-actions]

⚡️ Lighthouse report for the deploy preview of this PR

URL	Performance	Accessibility	Best Practices	SEO	PWA	Report
/	🟠 60	🟢 97	🟢 92	🟢 100	🟠 89	Report
/docs/installation	🟠 70	🟢 98	🟢 92	🟢 100	🟠 89	Report

[slorber]

LGTM thanks

It wasn't super clear to me where to find out this image string, but apparently it's from here: https://github.com/devcontainers/images/tree/main/src/base-ubuntu#using-this-image