Fix image-size detection via imagemagick for olahd/tify

This is related to tify in olahd. The fulltexts where not correctly referenced (highlighted with these boxes) because height and width were not set correctly in the phys-index. The reason was that imagemagick failed reading the image size. This is due to missing dependencies. For further reading regarding the dependencies: https://stackoverflow.com/questions/79019048/no-decode-delegate-for-this-image-format-jpeg