chore (alipad): add update script (#12856)

Signed-off-by: Owen-sz <owen@fyralabs.com>

anda/tools/alipad/anda.hcl

@@ -2,4 +2,7 @@ project pkg {
 	rpm {
 		spec = "alipad.spec"
 	}
+	labels {
+		nightly = 1
+	}
 }

anda/tools/alipad/update.rhai

@@ -1 +1,5 @@
-// Empty until sourcehut update script
+rpm.global("commit", sourcehut_commit("~malicean/alipad"));
+if rpm.changed() {
+  rpm.release();
+  rpm.global("commit_date", date());
+}