switch to ClickHouse/wal-rs

Author: serprex

.gitmodules

@@ -1,6 +1,6 @@
 [submodule "wal-rs"]
 	path = wal-rs
-	url = git@github.com:serprex/wal-rs.git
+	url = git@github.com:ClickHouse/wal-rs.git
 [submodule "clickhouse-c-rs/clickhouse-c"]
 	path = clickhouse-c-rs/clickhouse-c
 	url = https://github.com/ClickHouse/clickhouse-c