docs(distributed/collective): update code example paths

Author: HermitSun

docs/api/paddle/distributed/stream/all_gather_cn.rst

@@ -27,4 +27,4 @@ all_gather
 
 代码示例
 :::::::::
-COPY-FROM: paddle.distributed.stream.all_gather
+COPY-FROM: paddle.distributed.communication.stream.all_gather

docs/api/paddle/distributed/stream/all_reduce_cn.rst

@@ -27,4 +27,4 @@ all_reduce
 
 代码示例
 :::::::::
-COPY-FROM: paddle.distributed.stream.all_reduce
+COPY-FROM: paddle.distributed.communication.stream.all_reduce

docs/api/paddle/distributed/stream/alltoall_cn.rst

@@ -27,4 +27,4 @@ alltoall
 
 代码示例
 :::::::::
-COPY-FROM: paddle.distributed.stream.alltoall
+COPY-FROM: paddle.distributed.communication.stream.alltoall

docs/api/paddle/distributed/stream/alltoall_single_cn.rst

@@ -29,4 +29,4 @@ alltoall_single
 
 代码示例
 :::::::::
-COPY-FROM: paddle.distributed.stream.alltoall_single
+COPY-FROM: paddle.distributed.communication.stream.alltoall_single

docs/api/paddle/distributed/stream/broadcast_cn.rst

@@ -27,4 +27,4 @@ broadcast
 
 代码示例
 :::::::::
-COPY-FROM: paddle.distributed.stream.broadcast
+COPY-FROM: paddle.distributed.communication.stream.broadcast

docs/api/paddle/distributed/stream/recv_cn.rst

@@ -27,4 +27,4 @@ recv
 
 代码示例
 :::::::::
-COPY-FROM: paddle.distributed.stream.recv
+COPY-FROM: paddle.distributed.communication.stream.recv

docs/api/paddle/distributed/stream/reduce_cn.rst

@@ -28,4 +28,4 @@ reduce
 
 代码示例
 :::::::::
-COPY-FROM: paddle.distributed.stream.reduce
+COPY-FROM: paddle.distributed.communication.stream.reduce

docs/api/paddle/distributed/stream/reduce_scatter_cn.rst

@@ -29,4 +29,4 @@ reduce_scatter
 
 代码示例
 :::::::::
-COPY-FROM: paddle.distributed.stream.reduce_scatter
+COPY-FROM: paddle.distributed.communication.stream.reduce_scatter

docs/api/paddle/distributed/stream/scatter_cn.rst

@@ -28,4 +28,4 @@ scatter
 
 代码示例
 :::::::::
-COPY-FROM: paddle.distributed.stream.scatter
+COPY-FROM: paddle.distributed.communication.stream.scatter

docs/api/paddle/distributed/stream/send_cn.rst

@@ -27,4 +27,4 @@ send
 
 代码示例
 :::::::::
-COPY-FROM: paddle.distributed.stream.send
+COPY-FROM: paddle.distributed.communication.stream.send