feat: update setup action to read node version from .nvmrc

Author: gladiuscode

.github/actions/setup/action.yml

@@ -7,7 +7,7 @@ runs:
     - name: Use Node.js 18.x
       uses: actions/setup-node@v4
       with:
-        node-version: 18.x
+        node-version-file: '.nvmrc'
 
     - name: Enable corepack
       run: corepack enable