v4.3 update. (#2709)

* v4.3 update.

* Update the cute_dsl_api changelog's doc link

* Update version to 4.3.0

* Update the example link

* Update doc to encourage user to install DSL from requirements.txt

---------

Co-authored-by: Larry Wu <larwu@nvidia.com>

examples/python/CuTeDSL/notebooks/cuda_graphs.ipynb

@@ -26,10 +26,11 @@
    "source": [
     "# import torch for CUDA graphs\n",
     "import torch\n",
-    "import cutlass\n",
     "import cutlass.cute as cute\n",
+    "\n",
     "# import CUstream type from the cuda driver bindings\n",
     "from cuda.bindings.driver import CUstream\n",
+    "\n",
     "# import the current_stream function from torch\n",
     "from torch.cuda import current_stream"
    ]
@@ -61,13 +62,15 @@
     "    \"\"\"\n",
     "    cute.printf(\"Hello world\")\n",
     "\n",
+    "\n",
     "@cute.jit\n",
-    "def hello_world(stream : CUstream):\n",
+    "def hello_world(stream: CUstream):\n",
     "    \"\"\"\n",
     "    Host function that launches our (1,1,1), (1,1,1) grid in stream\n",
     "    \"\"\"\n",
     "    hello_world_kernel().launch(grid=[1, 1, 1], block=[1, 1, 1], stream=stream)\n",
     "\n",
+    "\n",
     "# Grab a stream from PyTorch, this will also initialize our context\n",
     "# so we can omit cutlass.cuda.initialize_cuda_context()\n",
     "stream = current_stream()\n",
@@ -585,7 +588,7 @@
     "\n",
     "# Calculate the time spent when launching kernels in a stream\n",
     "# Results are in ms\n",
-    "stream_time = start.elapsed_time(end) \n",
+    "stream_time = start.elapsed_time(end)\n",
     "\n",
     "# Warmup our GPU again\n",
     "g.replay()\n",