ci: move test_boot to github-actions

Move the `test_boot` test from Travis over to the Github-Actions based
CI. This is the last test on Travis, and the Travis CI can now be
disabled, if we so wish.

This test leaves a valid `travis.yml` file around, since Travis will
still be enabled on the repository. We should first disable Travis and
then drop this file, if we want to get rid of it.

.github/workflows/runtime-tests.yml

@@ -22,6 +22,17 @@ jobs:
       with:
         run: make test-runtime
 
+  boot_tests:
+    name: "Boot Tests"
+    runs-on: ubuntu-latest
+    steps:
+    - name: "Clone Repository"
+      uses: actions/checkout@v2
+    - name: "Run Boot Tests"
+      uses: osbuild/containers/ghci/actions/ghci-osbuild@ghci/v1
+      with:
+        run: python3 -m unittest -v test.test_boot
+
   noop_pipeline_tests:
     name: "Noop-Pipeline Tests"
     runs-on: ubuntu-latest

.travis.yml

@@ -7,5 +7,4 @@ env:
 jobs:
   include:
     - name: f30-boot
-      before_install: sudo apt-get install -y systemd-container yum qemu-kvm
-      script: sudo env "PATH=$PATH" python3 -m unittest -v test.test_boot
+      script: echo Nothing to do.