Fix the typo uncacherd -> uncached

Signed-off-by: ApostaC <[email protected]>

vllm/core/block/cpu_offloading_block_allocator.py

@@ -111,7 +111,7 @@ def __init__(self, cpu_block_allocator: PrefixCachingBlockAllocator,
           uncached: allocated blocks that didn't hit any cache
           cached: allocated blocks that are cached, either in GPU or in CPU
           free: the blocks are not allocated by block allocator
-        This implementation aims to transform uncacherd blocks to cached blocks
+        This implementation aims to transform uncached blocks to cached blocks
         by performing GPU to CPU copy when calling `get_and_reset_swaps`
         
         As block allocator will automatically track free blocks, and we don't