feat: add namespace support to SemaphoreRedis and bump semaphore dependency

- Added `namespace` parameter to `SemaphoreRedis::obtainLock` for scoping locks.
- Updated `charcoal-dev/semaphore` dependency to `^0.2.9` in `composer.json`.

Author: furqansiddiqui

composer.json

@@ -15,7 +15,7 @@
   "require": {
     "php": "^8.3",
     "charcoal-dev/contracts-storage": "^0.1.4",
-    "charcoal-dev/semaphore": "^0.2.8",
+    "charcoal-dev/semaphore": "^0.2.9",
     "charcoal-dev/base": "^0.2.6"
   },
   "suggest": {

src/Semaphore/SemaphoreRedis.php

@@ -29,11 +29,12 @@ public function __construct(public RedisClientInterface&LocksInterface $redisCli
      * @throws SemaphoreLockException
      */
     public function obtainLock(
-        string $lockId,
-        ?float $concurrentCheckEvery = null,
-        int    $concurrentTimeout = 0
+        string  $lockId,
+        ?float  $concurrentCheckEvery = null,
+        int     $concurrentTimeout = 0,
+        ?string $namespace = null
     ): RedisLock
     {
-        return new RedisLock($this, $lockId, $concurrentCheckEvery, $concurrentTimeout);
+        return new RedisLock($this, $lockId, $concurrentCheckEvery, $concurrentTimeout, namespace: $namespace);
     }
 }