[Feature] Backup and restore

[alexjustesen]

⚠️ absolutely a work in progress that's going to require a lot of testing, don't expect this one to get done too quick.

Description

This PR introduces backup and restoring of Speedtest Tracker's database and environmental variables.

Closes #294

To-do

• Support backup of MySQL (and MariaDB) databases
• Support backup of Postgresql database
• Support backup of Sqlite database
• Include the following files in the backup
  • .env for any manually set environment variables
  • config/speedtest.php to capture Speedtest Tracker's version
• Support adhoc runs of backups
• Support scheduled backups
• Support different file drivers
  • local (via mounted volume)
  • s3 compatable like AWS S3, Backblaze etc
• Support notifications (through existing channels) when a backup fails
• Create a "backups" page in the admin panel to include
  • Editing of the backup schedule
  • Editing of the backup retention strategy
  • Listing existing backups
  • Deleting of existing backups
• Create a "restore" page in the admin panel to include
  • 👀 might skip this to reduce complexity and get to a deployment faster
  • Uploading of backup .zip files to restore from
  • All the warnings to make sure you know what you're doing
  • Don't allow restoring from a backup if the version doesn't match the running container
• Update documentation
  • Section on backups, and how they're different from exporting data
  • Section on restoring through the admin panel and manually

Changelog

Added

• spatie/laravel-backup to handle backing up the database and files
• gzip to the Docker images to support compression in the future

Screenshots

... tbd, will add screenshots of the backup and restore pages

[alexjustesen]

Closing, will be using Filament's built in functionality.