ci: run integration test

Author: phip1611

.github/workflows/integrationtest.yml

@@ -0,0 +1,19 @@
+name: "Integrationtest"
+
+# Run on every push (tag, branch) and pull_request
+on: [pull_request, push, workflow_dispatch]
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  multiboot2_integrationtest:
+    name: multiboot2 integrationtest
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out
+        uses: actions/checkout@v3
+      - uses: cachix/install-nix-action@v19
+      - run: integration-test/run_multiboot2_integrationtest.sh
+
+  # multiboot2-header_integrationtest: