Use solc-select in the CI

Author: montyly

.github/workflows/ci.yml

@@ -27,8 +27,9 @@ jobs:
         python-version: 3.8
     - name: Install dependencies
       run: |
-        sudo wget -O /usr/bin/solc https://github.com/ethereum/solidity/releases/download/v0.5.11/solc-static-linux
-        sudo chmod +x /usr/bin/solc
+        pip install solc-select
+        solc-select install 0.5.11
+        solc-select use 0.5.11
     - name: Run Tests
       env:
         TEST_TYPE: ${{ matrix.type }}