Add Ubuntu test

Also run the tests on Ubuntu.
This has returned a few py3 specific bugs already, so might be useful.

Signed-off-by: Patrick Uiterwijk <patrick@puiterwijk.org>

.github/workflows/ci.yml

@@ -22,6 +22,29 @@ jobs:
       run: |
         bandit -ll -r .
 
+  test_ubuntu:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install apt deps
+        run: |
+          sudo apt-get install -y \
+            python3 librpm-dev python3-rpm python3-pip python3-setuptools \
+            python3-requests python3-gssapi python3-pyxattr rpm valgrind ima-evm-utils
+
+      - name: Install pip deps
+        run: |
+          pip3 install koji
+
+      - name: Build insertlib
+        run: |
+          python3 setup.py build_ext -i
+
+      - name: Run test
+        run: |
+          PRINT_VALGRIND_LOG=1 python3 test.py
+
   tests_fedora:
     runs-on: ubuntu-latest
     container: fedora:latest