ci: try adding slash

Author: CharlieC3

.github/workflows/ci.yml

@@ -137,7 +137,7 @@ jobs:
       - uses: actions/setup-node@v6
         with:
           node-version-file: '.nvmrc'
-          registry-url: 'https://registry.npmjs.org'
+          registry-url: 'https://registry.npmjs.org/'
 
       - name: Install deps
         run: npm ci --audit=false