fix CI build

* update nodejs
* set up python

.github/workflows/startos-iso.yaml

@@ -45,7 +45,7 @@ on:
       - next/*
 
 env:
-  NODEJS_VERSION: "18.15.0"
+  NODEJS_VERSION: "20.16.0"
   ENVIRONMENT: '${{ fromJson(format(''["{0}", ""]'', github.event.inputs.environment || ''dev''))[github.event.inputs.environment == ''NONE''] }}'
 
 jobs:
@@ -75,6 +75,11 @@ jobs:
         with:
           submodules: recursive
 
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.x'
+
       - uses: actions/setup-node@v4
         with:
           node-version: ${{ env.NODEJS_VERSION }}
@@ -148,6 +153,11 @@ jobs:
         with:
           submodules: recursive
 
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.x'
+
       - name: Install dependencies
         run: |
           sudo apt-get update