ci: fix publish plugin directory and set pnpm v10

Author: MatiasOS

.github/workflows/npm-publish.yml

@@ -11,12 +11,14 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - uses: pnpm/action-setup@v4
+        with:
+          version: 10
       - uses: actions/setup-node@v6
         with:
           node-version: "24"
           registry-url: "https://registry.npmjs.org"
           cache: "pnpm"
       - run: pnpm install --frozen-lockfile
       - run: pnpm run build
-      - run: pnpm publish --provenance
+      - run: pnpm --filter @openscan/hardhat-plugin publish --provenance