fix error message for unknown dependency

crates/uv/src/commands/project/remove.rs

@@ -32,7 +32,10 @@ pub(crate) async fn remove(
     for req in requirements {
         let req = Requirement::from(LenientRequirement::from_str(&req)?);
         if pyproject.remove_dependency(&req)?.is_none() {
-            anyhow::bail!("the dependency `req` could not be found in `dependencies`");
+            anyhow::bail!(
+                "the dependency `{}` could not be found in `dependencies`",
+                req.name
+            );
         }
     }