Sweep: Update install.yml GitHub workflow for testing the project

[sweep-ai]

Purpose

This pull request updates the install.yml GitHub workflow to ensure the project can be properly tested using PHP 8.3 and Node.js 20.

Description

The changes in this pull request include:

1. Updating the PHP version to 8.3 in the Setup PHP step.
2. Updating the Node.js version to 20 in the Setup Node.js step.
3. Adding a step to copy the .env.testing file to .env for the testing environment.
4. Adding steps to install dependencies, generate the application key, run database migrations, seed the database, install npm dependencies, and build the frontend assets.
5. Adding a final step to run the project's tests.

Summary

The key changes in this pull request are:

• Updated the PHP version to 8.3 and Node.js version to 20 in the GitHub workflow
• Added steps to set up the testing environment, install dependencies, and run tests
• Improved the reliability and consistency of the project's testing workflow

Fixes #750.

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[sweep-ai]

Sweep: PR Review

Author: sweep-ai[bot]
The Pull Request looks good! Sweep did not find any issues.