don't call script from ci tests

.github/workflows/test_challenge.yml

@@ -20,9 +20,11 @@ jobs:
       run: |
         npm install --global yarn
         yarn install
-    - name: Build minigeth and run default block (cache)
+    - name: Build minigeth and run block 13284469 (builds preimage cache)
       run: |
-        ./run_block.sh 13284469
+        (cd minigeth/ && go build)
+        mkdir -p /tmp/cannon
+        minigeth/go-ethereum 13284469
     - name: Install Python deps
       run: pip3 install -r mipigo/requirements.txt
     - name: Build minigeth for embedded

.github/workflows/test_mipsevm.yml

@@ -24,7 +24,8 @@ jobs:
       run: npx hardhat compile
     - name: Build minigeth and run default block (cache)
       run: |
-        ./run_block.sh
+        (cd minigeth/ && go build)
+        mkdir -p /tmp/cannon
         minigeth/go-ethereum 13284491
     - name: Install Python deps
       run: pip3 install -r mipigo/requirements.txt