[ICON REQUEST]: OpenTofu

### I have searched through the issues and didn't find my problem.

- [x] Confirm

### About the icon

OpenTofu is an infrastructure-as-code platform that is a part of the CNCF

### Links and sources

- [Main website](https://opentofu.org/). The icon is in the banner and is the favicon.
- There is a [git repo](https://github.com/opentofu/brand-artifacts) containing the brand artifacts.

### Icon links and previews

#### opentofu-on-light

https://raw.githubusercontent.com/opentofu/brand-artifacts/refs/heads/main/symbol-only/transparent/SVG/on-light.svg

#### opentofu-on-dark

https://raw.githubusercontent.com/opentofu/brand-artifacts/refs/heads/main/symbol-only/transparent/SVG/on-dark.svg

### Additional information

Other SVGs can be found in the git repo.
Most metadata can be copied from Terraform.