Try with setupruby on new image

.gitea/workflows/test.yaml

@@ -5,17 +5,11 @@ on:
 
 jobs:
   test:
-    runs-on: ruby-latest
-    steps:
-    - name: Install Node
-      run: |
-        apt-get update
-        apt-get install git ca-certificates curl gnupg --yes
-        mkdir -p /etc/apt/keyrings
-        curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg
-        echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_20.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list
-        apt-get update
-        apt-get install -y nodejs
+    runs-on: cth-ubuntu-latest
+    # runs-on: ruby-latest
+    - uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: 3.3.1
     - uses: actions/checkout@v4
     - uses: actions/cache@v2
       with: