Rollup merge of #30465 - androm3da:master, r=alexcrichton
Rollup merge of #30465 - androm3da:master, r=alexcrichton

The `dynamic_lib` library has been deprecated in favor of contents on crates.io, but apparently `libloading` is a more specific direction that fits the need.

graydon/rust,graydon/rust,GBGamer/rust,aidancully/rust,aidancully/rust,aidancully/rust,aidancully/rust,GBGamer/rust,aidancully/rust,aidancully/rust,GBGamer/rust,GBGamer/rust,graydon/rust,GBGamer/rust,GBGamer/rust,GBGamer/rust,graydon/rust,GBGamer/rust,graydon/rust,graydon/rust