- Remove unused `ruby-vips` gem from Gemfile
- Update Dockerfile to remove `libvips42` package, which is no longer needed
- Comment out legacy watermarking code in `AddWatermarkToWeatherArtWorker`
These changes streamline the dependencies, making the
project lighter and reduce potential security issues with
unused gems and packages. The watermarking functionality is now
commented out for potential future use but is not currently
needed.