ci(wokwi_tests): upgrade action dependencies

should reduce Node.js 16 deprecation warnings

.github/workflows/wokwi_test.yaml

@@ -38,7 +38,7 @@ jobs:
 
     # need python and requirements
     - name: setup python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: '3.10'
     - run: pip install -r tt/requirements.txt
@@ -50,7 +50,7 @@ jobs:
     # does the wokwi project have a truthtable?
     - name: Check the truthtable exists
       id: check_files
-      uses: andstor/file-existence-action@v2
+      uses: andstor/file-existence-action@v3
       with:
         files: "src/truthtable.md"
 
@@ -65,7 +65,7 @@ jobs:
 
     - name: upload vcd
       if: success() || failure()
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
           name: test-vcd
           path: src/*.vcd