docs: add Warns

Author: phi-friday

src/typed_diskcache/implement/sync/lock.py

@@ -264,6 +264,13 @@ class AsyncLock(AsyncLockProtocol):
         expire: Expiration time for lock.
         tags: Tags for lock.
 
+    Warns:
+        RuntimeWarning:
+            If the current Python interpreter is free-threading (without GIL),
+            using [`AsyncLock`][typed_diskcache.AsyncLock] may lead to
+            unexpected behavior. Consider using
+            [`SyncLock`][typed_diskcache.SyncLock] instead in such cases.
+
     Examples:
         ```python
         import typed_diskcache
@@ -381,6 +388,13 @@ class AsyncRLock(AsyncLock):
         expire: Expiration time for lock.
         tags: Tags for lock.
 
+    Warns:
+        RuntimeWarning:
+            If the current Python interpreter is free-threading (without GIL),
+            using [`AsyncRLock`][typed_diskcache.AsyncRLock] may lead to
+            unexpected behavior. Consider using
+            [`SyncRLock`][typed_diskcache.SyncRLock] instead in such cases.
+
     Examples:
         ```python
         import typed_diskcache

src/typed_diskcache/implement/sync/semaphore.py

@@ -192,6 +192,13 @@ class AsyncSemaphore(AsyncSemaphoreProtocol):
         expire: Expiration time for semaphore.
         tags: Tags for semaphore.
 
+    Warns:
+        RuntimeWarning:
+            If the current Python interpreter is free-threading (without GIL),
+            using [`AsyncSemaphore`][typed_diskcache.AsyncSemaphore] may lead to
+            unexpected behavior. Consider using
+            [`SyncSemaphore`][typed_diskcache.SyncSemaphore] instead in such cases.
+
     Examples:
         ```python
         import typed_diskcache