Run integration tests on GitHub (WIP)

.github/workflows/check-pr.yml

@@ -6,12 +6,27 @@ jobs:
   check-pr:
     name: Check PR
     runs-on: ubuntu-latest
+
+    services:
+      docker:
+        image: docker:latest
+        options: --privileged  # Required for Docker-in-Docker (dind)
+        volumes:
+          - /var/run/docker.sock:/var/run/docker.sock
+        ports:
+          - 2375:2375
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
           java-version: '11'
           cache: 'sbt'
+      # - uses: sbt/setup-sbt@v1
+      - name: Install dependencies
+        # testcontainers uses nc:
+        # https://github.com/testcontainers/testcontainers-java/blob/main/core/src/main/java/org/testcontainers/containers/wait/internal/InternalCommandPortListeningCheck.java#L33
+        run: sudo apt-get update && sudo apt-get install -y netcat
       - name: Check PR
-        run: sbt --batch "compile;test"
+        run: sbt --batch "docker;consensus-client-it/test"
+        # 10:59:19.028 WARN  [ers-wait-0] o.t.c.w.i.InternalCommandPortListeningCheck - An exception while executing the internal check: Container.ExecResult(exitCode=137, stdout=, stderr=/bin/sh: 1: nc: not found