Update npm-publish workflow with permissions

Add permissions for OIDC and update npm publish step.

Author: dimavroudis

.github/workflows/npm-publish.yml

@@ -7,6 +7,11 @@ on:
   release:
     types: [created]
 
+
+permissions:
+  id-token: write  # Required for OIDC
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -31,5 +36,3 @@ jobs:
       - run: npm ci
       - run: npm run build --if-present
       - run: npm publish
-        env:
-          NODE_AUTH_TOKEN: ${{secrets.npm_token}}