Update environment_variables.txt

environment_variables.txt

@@ -1,4 +1,5 @@
-TORCH_CUDA_ARCH_LIST			6.0+PTX 7.0 7.5 8.0+PTX 				#after official 0.0.27
+TORCH_CUDA_ARCH_LIST			6.0+PTX 7.0 7.5 8.0+PTX 9.0a 			#official 0.0.28
+TORCH_CUDA_ARCH_LIST			6.0+PTX 7.0 7.5 8.0+PTX 				#official 0.0.27
 TORCH_CUDA_ARCH_LIST			5.0+PTX 6.0 6.1 7.0 7.5 8.0+PTX 9.0		#before official 0.0.26.post1
 
 XFORMERS_PT_FLASH_ATTN  		0