Add Ubuntu Jammy CI

Signed-off-by: Steve Peters <scpeters@openrobotics.org>

Author: scpeters

.github/workflows/ci.yml

@@ -23,3 +23,12 @@ jobs:
       - name: Compile and test
         id: ci
         uses: ignition-tooling/action-ignition-ci@focal
+  jammy-ci:
+    runs-on: ubuntu-latest
+    name: Ubuntu Jammy CI
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Compile and test
+        id: ci
+        uses: ignition-tooling/action-ignition-ci@jammy