Add GitHub CI.

Author: godunko

.github/workflows/alire.yml

@@ -0,0 +1,16 @@
+# SPDX-FileCopyrightText: 2025 Vadim Godunko <vgodunko@gmail.com>
+#
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+name: Build with Alire
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - uses: alire-project/setup-alire@v3
+    - name: Build project
+      run: alr build