upgrade to iverilog 10.3 on Ubuntu

.github/workflows/test.yaml

@@ -16,22 +16,20 @@ jobs:
         uses: actions/cache@v1
         with:
           path: ~/.local
-          key: ${{ runner.OS }}-iverilog-10-2
-          restore-keys: ${{ runner.OS }}-iverilog-10-2
+          key: ${{ runner.OS }}-iverilog-10-3
+          restore-keys: ${{ runner.OS }}-iverilog-10-3
       - name: Install iverilog
         run: |
-          if [ "${{ runner.OS }}" = "Linux" ]; then
-            if [ ! -e "$HOME/.local/bin/iverilog" ]; then
-              curl --retry-max-time 60 -L https://github.com/steveicarus/iverilog/archive/v10_2.tar.gz > iverilog.tar.gz
-              tar -xzf iverilog.tar.gz
-              cd iverilog-10_2
+          if [ "${{ runner.OS }}" = "Linux" ] && [ ! -e "$HOME/.local/bin/iverilog" ]; then
+            curl -L https://github.com/steveicarus/iverilog/archive/v10_3.tar.gz > iverilog-10_3.tar.gz
+            tar -xzf iverilog-10_3.tar.gz
+            cd iverilog-10_3
             autoconf
             ./configure --prefix=$HOME/.local
             make
             make install
             cd ..
           fi
-          fi
       - name: Build
         run: make
       - name: Test