encore eject docker image:tag breaks when calling from different drive

[ryanocf]

encore eject docker ... breaks when calling from different drive

Environment

OS: Windows 23H2 (Build 22631.4037)
Encore: v1.40.4
Node: 22.4.1
NPM: 10.8.2
Docker Desktop: 4.33.1

Expected output

• compiled docker image

Actual output

7:21PM INF compiling Encore application for linux/amd64
7:21PM ERR build docker image: build image fs: copy path: Rel: can't make C:\Users\admin\.encore\runtimes\js\encore.dev relative to D:\Projects\encore-file-upload\node_modules

Reproduce steps

1. Install encore via the docs
2. Create an app via encore app create on a different drive than encore is installed with Typescript
3. Call encore eject docker image:tag

But if you would now just copy the app folder to the same drive encore is installed on, it works just fine.
So to visually show the problem:

WORKS

.
└── C:/
    ├── 📁User/
    │   └── 📁admin/
    │       └── 📁.encore/
    │           └── ...
    └── 📁encore-test-app/
        └── ...

DOESN'T WORK

.
├── C:/
│   └── 📁User/
│       └── 📁admin/
│           └── 📁.encore/
│               └── ...
└── D:/
    └── 📁encore-test-app/
        └── ...