fixup! Bytecode comparison PR check

Author: cameel

.github/workflows/t-bytecode-compare.yml

@@ -27,6 +27,11 @@ jobs:
       PLATFORM: ${{ matrix.platform }}
 
     steps:
+      - uses: actions/setup-python@v2
+        with:
+          # Use the latest minor release of Python 3. prepare_report.py requires Python >= 3.7
+          python-version: '3.x'
+
       - uses: actions/checkout@v2
         with:
           repository: 'ethereum/solidity'