ci: update Node version to 24

https://docs.npmjs.com/trusted-publishers recommends node-version 24
and not updating npm separately, this change copies the recommended configuration.

Also update node version to 24 in non-release workflows, version 18 is EOL.
There is a version 26 already, but 24 is LTS.

Also disable cache for release pipelines.

.github/workflows/jsonrpc-client-npm-package.yml

@@ -22,15 +22,13 @@ jobs:
           show-progress: false
           persist-credentials: false
 
+      # Configure Node.js for publishing.
+      # Check <https://docs.npmjs.com/trusted-publishers> for the version requirements.
       - uses: actions/setup-node@v6
         with:
-          node-version: 20
+          node-version: 24
           registry-url: "https://registry.npmjs.org"
-
-      # Ensure npm 11.5.1 or later is installed.
-      # It is needed for <https://docs.npmjs.com/trusted-publishers>
-      - name: Update npm
-        run: npm install -g npm@latest
+          package-manager-cache: false  # never use caching in release builds
 
       - name: Install dependencies without running scripts
         working-directory: deltachat-jsonrpc/typescript