Use verilator 5.032 for CI

Signed-off-by: Alex Forencich <alex@alexforencich.com>

.github/workflows/regression-tests.yml

@@ -13,10 +13,9 @@ jobs:
 
     steps:
     - uses: actions/checkout@v3
-
-    - name: Install Ubuntu packages
-      run: |
-        sudo apt install -y --no-install-recommends iverilog verilator
+    - uses: v0xnihili/install-verilator-action@main
+      with:
+        version: v5.032
 
     - name: Install Python dependencies
       run: |