fix: copy PDBs for EFI targets

EFI also uses the PE format with .pdb files, and rustc generates them,
but Cargo does not copy them out of target/*/deps. This is an oversight,
so this PR fixes it.

Related: rust-osdev/uefi-rs#289
Related: #5179

src/cargo/core/compiler/build_context/target_info.rs

@@ -465,7 +465,7 @@ impl TargetInfo {
                     // the names to match.
                     should_replace_hyphens: false,
                 })
-            } else if target_triple.ends_with("-msvc") {
+            } else if target_triple.ends_with("-msvc") || target_triple.ends_with("-uefi") {
                 ret.push(FileType {
                     suffix: ".pdb".to_string(),
                     prefix: prefix.clone(),