chore: bump actions/setup-node from v4.4.0 to v6.4.0 (Node.js 24) (#1377)

* chore: bump actions/setup-node from v4.4.0 to v6.4.0 (Node.js 24)

setup-node v4 runs on the deprecated Node.js 20 action runtime, producing
a deprecation warning on every workflow run that uses base-action. v6 runs
on Node 24. This only changes the action's own runtime — the node-version
it installs for user code is unaffected.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* Disable setup-node v5+ automatic package-manager caching

Preserves v4 behavior: caching only when use_node_cache=true.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

---------

Co-authored-by: ant-kurt <209710463+ant-kurt@users.noreply.github.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>

Author: ant-kurt

base-action/action.yml

@@ -110,10 +110,11 @@ runs:
   using: "composite"
   steps:
     - name: Setup Node.js
-      uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # https://github.com/actions/setup-node/releases/tag/v4.4.0
+      uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # https://github.com/actions/setup-node/releases/tag/v6.4.0
       with:
         node-version: ${{ env.NODE_VERSION || '18.x' }}
         cache: ${{ inputs.use_node_cache == 'true' && 'npm' || '' }}
+        package-manager-cache: false
 
     - name: Install Bun
       if: inputs.path_to_bun_executable == ''