fix(post): Adding export, thanks zazga

Author: timothystewart6

_posts/2025-06-15-immich-self-hosted.md

@@ -80,8 +80,8 @@ sudo apt-get update
 Install NVIDIA Container Toolkit packages
 
 ```shell
-NVIDIA_CONTAINER_TOOLKIT_VERSION=1.17.8-1 \
-   sudo apt-get install -y \
+export NVIDIA_CONTAINER_TOOLKIT_VERSION=1.17.8-1
+  sudo apt-get install -y \
       nvidia-container-toolkit=${NVIDIA_CONTAINER_TOOLKIT_VERSION} \
       nvidia-container-toolkit-base=${NVIDIA_CONTAINER_TOOLKIT_VERSION} \
       libnvidia-container-tools=${NVIDIA_CONTAINER_TOOLKIT_VERSION} \