Add ubuntu-22.04 to the CI test matrix

we need to check against older compilers.

Signed-off-by: Serge Hallyn <serge@hallyn.com>

diff --git a/.github/workflows/runner.yml b/.github/workflows/runner.yml
index 0327dfcac8ca1633671392b9b964b9df7fa5ecef..71e1fa5c31211103e8383bfccb3d396660996cd9 100644 (file)
--- a/.github/workflows/runner.yml
+++ b/.github/workflows/runner.yml
@@ -10,7 +10,10 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        os: [ubuntu-latest, ubuntu-22.04]
+    runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v3
     - name: debug