OIIO is missing in VFX CY2024 and VFX CY2025 CI builds.

Looks like containers for CY2024 and CY2025 don't have OIIO in them thus the CI builds that are set to exercise OIIO build without OIIO.

Log snippet from the "**Linux VFX CY2024 \"**, Configure step:
```
-- Checking if the OpenImageIO found is built with OpenEXR 3+...
-- Could not find OpenImageIO header to evaluate the OpenEXR version.
-- Please provide the OpenImageIO_DIR variable.
-- If your OpenImageIO's files are located in different root directory, please provide the OpenImageIO_ROOT where the include files are located.
```

Older containers 2022 and 2023 do have OIIO, and CI builds use them as intended.

CY2024 と CY2025 の CI コンテナ定義を調査し、動作している 2022 年および 2023 年のコンテナと比較します。影響を受ける VFX configure ステップを実行し、OIIO が有効な場合に OpenImageIO がインストールされ、検出されることを確認します。

索引モデルが issue の本文から書いたものです。