Rollup merge of #87553 - bjorn3:fix_hotplug_codegen_version, r=wesleywiser
Rollup merge of #87553 - bjorn3:fix_hotplug_codegen_version, r=wesleywiser

Fix typo in rustc_driver::version

This caused rustc `-Zcodegen-backend=foo.so -vV` to look for `oo.so` instead of `foo.so`

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