update github CI to verify UID is unique

util/ci_compile_vial_keyboards.py

@@ -0,0 +1,17 @@
+#!/usr/bin/env python3
+from glob import glob
+import subprocess
+
+
+def main():
+    for filename in glob("keyboards/**/vial.json", recursive=True):
+        filename = filename[10:-10]
+        cmd = filename.split("/keymaps/")[0]
+        # compile default
+        subprocess.call(["make", cmd + ":default", "-j4"])
+        # compile via
+        subprocess.call(["make", cmd + ":via", "-j4"])
+
+
+if __name__ == "__main__":
+    main()