Describe the bug
The Docker runtime image produced by the current Dockerfile misses the libcurl4 package. This results in colmap: error while loading shared libraries: libcurl.so.4: cannot open shared object file: No such file or directory when running colmap. Running apt install libcurl4 inside the Docker container fixes the issue.

To Reproduce
Steps to reproduce the behavior:

1. Go to the colmap/docker dir
2. Run ./build.sh
3. Run ./run.sh /path/where/your/working/folder/is
4. Run colmap
5. See error

Expected behavior
The help message of colmap.