Fix publish: upgrade npm for trusted publishing support

Node 22 ships with npm 10.x which does not support OIDC trusted
publishing. npm >= 11.5.1 is required. Also removed registry-url
from setup-node since npm 11.5.1+ handles the registry and OIDC
exchange natively.

Author: ThomAub

.github/workflows/publish.yml

@@ -17,7 +17,7 @@ jobs:
         with:
           node-version: 22
           cache: npm
-          registry-url: "https://registry.npmjs.org"
+      - run: npm install -g npm@latest
       - run: npm ci
       - run: npx playwright install chromium --with-deps
       - run: npm run lint