Add a CI job that tests the installer script

Signed-off-by: Tsuyoshi Hombashi <tsuyoshi.hombashi@gmail.com>

.github/workflows/ci.yml

@@ -99,3 +99,17 @@ jobs:
         run: make test
         env:
           PYTEST_DISCORD_WEBHOOK: ${{ secrets.PYTEST_DISCORD_WEBHOOK }}
+
+  test-installer:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-20.04, ubuntu-22.04, ubuntu-24.04]
+    concurrency:
+      group: ${{ github.event_name }}-${{ github.workflow }}-installer-${{ matrix.os }}
+      cancel-in-progress: true
+    timeout-minutes: 20
+
+    steps:
+      - run: curl -sSL https://raw.githubusercontent.com/thombashi/tcconfig/master/scripts/installer.sh | sudo bash -x