install npm for tanstack task

Author: magnetised

.github/workflows/elixir_tests.yml

@@ -35,6 +35,10 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
+      - uses: pnpm/action-setup@v4
+        with:
+          version: 10
+      - uses: actions/setup-node@v4
 
       - name: "Set PG settings"
         run: |