ci: basic medusa gh action (short timeout to debug it)

.github/workflows/medusa.yml

@@ -0,0 +1,30 @@
+name: Run medusa
+on:
+  push:
+    branches: [main, dev]
+  pull_request:
+    branches:
+      - "**"
+jobs:
+  tests:
+    concurrency: ci-medusa-${{ github.head_ref || github.run_id }}
+    runs-on: ubuntu-latest
+    container:
+      image: trailofbits/eth-security-toolbox:nightly
+      options: --user root
+    steps:
+      - name: debug1
+        run: pwd
+      - name: debug2
+        run: whoami
+      - name: debug3
+        run: ls
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          submodules: "recursive"
+          fetch-depth: 1
+
+      - name: Run medusa for five minutes
+        run: medusa fuzz --timeout 30
+