chore: shadow member_manifests

Author: JoE11-y

forc-pkg/src/manifest/dep_modifier.rs

@@ -57,7 +57,7 @@ pub fn modify_dependencies(opts: ModifyOpts) -> Result<()> {
     };
 
     let root_dir = manifest_file.root_dir();
-    let mut member_manifests = manifest_file.member_manifests()?;
+    let member_manifests = manifest_file.member_manifests()?;
 
     let package_manifest_dir =
         resolve_package_path(&manifest_file, &opts.package, &root_dir, &member_manifests)?;
@@ -106,10 +106,7 @@ pub fn modify_dependencies(opts: ModifyOpts) -> Result<()> {
 
     let updated_package_manifest = PackageManifestFile::from_file(&package_manifest_dir)?;
 
-    member_manifests.insert(
-        updated_package_manifest.project_name().to_string(),
-        updated_package_manifest,
-    );
+    let member_manifests = updated_package_manifest.member_manifests()?;
 
     let new_plan = pkg::BuildPlan::from_lock_and_manifests(
         &lock_path,