Fix OIDC publishing for scoped packages (#6911)

## What's the problem this PR addresses?

At #6898, I made a mistake, making it not work for scoped packages.

Author: cometkim

.yarn/versions/c1a29eeb.yml

@@ -0,0 +1,24 @@
+releases:
+  "@yarnpkg/cli": patch
+  "@yarnpkg/plugin-npm": patch
+  "@yarnpkg/plugin-npm-cli": patch
+
+declined:
+  - "@yarnpkg/plugin-compat"
+  - "@yarnpkg/plugin-constraints"
+  - "@yarnpkg/plugin-dlx"
+  - "@yarnpkg/plugin-essentials"
+  - "@yarnpkg/plugin-init"
+  - "@yarnpkg/plugin-interactive-tools"
+  - "@yarnpkg/plugin-nm"
+  - "@yarnpkg/plugin-pack"
+  - "@yarnpkg/plugin-patch"
+  - "@yarnpkg/plugin-pnp"
+  - "@yarnpkg/plugin-pnpm"
+  - "@yarnpkg/plugin-stage"
+  - "@yarnpkg/plugin-typescript"
+  - "@yarnpkg/plugin-version"
+  - "@yarnpkg/plugin-workspace-tools"
+  - "@yarnpkg/builder"
+  - "@yarnpkg/core"
+  - "@yarnpkg/doctor"

packages/plugin-npm/sources/npmHttpUtils.ts

@@ -625,7 +625,7 @@ async function getOidcToken(registry: string, {configuration, ident}: {configura
 
   try {
     const response = await httpUtils.post(
-      `${registry}/-/npm/v1/oidc/token/exchange/package/${ident.name.replace(/^@/, `%40`)}`,
+      `${registry}/-/npm/v1/oidc/token/exchange/package${getIdentUrl(ident)}`,
       null,
       {
         configuration,