feat: update dependencies due to vulnerabilities

[somehowchris]

Hey man,

Awesome tool. Tried it out locally and noticed some vulnerabilities and unpinned libraries. For security purposes, I pinned some of them and updated the docker image.

If you plan to keep that thing up to date (which would be awesome) I would recommend to add dependabot or something like it.

There are a f**** ton of lines updated due to cargo fmt. The main changes are the Cargo.toml files, the Dockerfile and the two imports of image::FileType moved to image::imageops::FileType and image::ConvertBuffer moved to image::buffer::ConvertBuffer

Do you plan to publish the docker image yourself?