add CUDA 11.6 (#97)

Co-authored-by: Dustin Ingram <[email protected]>

Author: leofang

src/trove_classifiers/__init__.py

@@ -45,6 +45,7 @@
     "Environment :: GPU :: NVIDIA CUDA :: 11.3",
     "Environment :: GPU :: NVIDIA CUDA :: 11.4",
     "Environment :: GPU :: NVIDIA CUDA :: 11.5",
+    "Environment :: GPU :: NVIDIA CUDA :: 11.6",
     "Environment :: Handhelds/PDA's",
     "Environment :: MacOS X",
     "Environment :: MacOS X :: Aqua",