feat(labrinth): Redis Cluster (#6771)

* chore(labrinth): bump to redis 1.4.1

* feat(labrinth): redis cluster

* chore: cleanup

* feat(labrinth): cache locking

* fix(labrinth): clippy

* chore(labrinth): cleanup env, remove postcard support

* chore(ci): fix test env for labrinth

* chore(labrinth): bump all key versions

* chore(labrinth): improve redis key identities handling

* chore(labrinth): simplify deadline handling

* chore(labrinth): remove unused lease tracking

* chore(labrinth): remove distributed cache locking for now

* chore(labrinth): improve redis backend init error

* feat(labrinth): expose redis read replica strategy

* chore(ci): remove other connection mode tests

* chore: split xredis crate

* feat(xredis): primaries routing

* chore: tombi fmt

* chore: clippy

* chore: update query cache

packages/xredis/src/cache/locking.rs

@@ -0,0 +1,17 @@
+mod local;
+
+use std::time::Duration;
+
+pub(super) use self::local::{LockAcquisition, LockCoordinator, LockWaiter};
+
+pub(super) const WAIT_TIMEOUT: Duration = Duration::from_secs(5);
+
+/// Normalize only the requested lookup form's case. Raw IDs and aliases remain
+/// distinct lock identities and may therefore fill concurrently.
+pub(super) fn normalize_key(key: &str, case_sensitive: bool) -> String {
+    if case_sensitive {
+        key.to_owned()
+    } else {
+        key.to_lowercase()
+    }
+}