Fixing up a round of CVEs affecting our Docker image

[joehan]

Description

Going through the CVEs detected on our Docker image and bumping versions to address them. Also, removing Python from the image because we don't actually need it (was a holdover from the community builder image we sourced this from).

[gemini-code-assist]

Summary of Changes

Hello @joehan, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request addresses identified Common Vulnerabilities and Exposures (CVEs) within the Docker image by performing targeted dependency updates. Additionally, it refines the Docker image build process by removing unneeded components, contributing to a more secure and efficient deployment environment.

Highlights

• Dependency Updates: The hono dependency has been updated to version 4.11.4 and the tar dependency has been updated to 7.5.4. The tar update is a major version bump, but the author has confirmed that breaking changes related to stricter paths and default strip behavior do not affect our usage.
• Dockerfile Optimization: The Dockerfile for the Firebase Docker image has been streamlined by removing the installation of python3 and py3-pip, indicating these are no longer required for the image's functionality.

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[gemini-code-assist]

Code Review

This pull request addresses several CVEs by updating dependencies in package.json and removing Python from the Dockerfile. The dependency updates for hono and tar seem appropriate, especially with the note about reviewing tar's major version bump. However, the removal of Python from the Dockerfile could potentially introduce runtime issues if there are any hidden dependencies on Python within the Docker image's operations. It's crucial to ensure that Python is indeed no longer required for any part of the application or its build/runtime processes within the Docker container.