Update on "[ET-VK] Simplifying conv1d op shader by changing it to process one output texel per thread."

This diff changes conv1d shader to process one output texel per thread, increasing GPU occupancy and improve performance.

Differential Revision: [D74097560](https://our.internmc.facebook.com/intern/diff/D74097560/)

[ghstack-poisoned]

Author: trivedivivek

backends/vulkan/runtime/graph/ops/impl/Convolution.cpp

@@ -512,7 +512,8 @@ void add_conv1d_node(
   const int32_t padding_size = graph.get_int_list(padding)->at(0);
   const int32_t dilation_size = graph.get_int_list(dilation)->at(0);
   const int32_t in_group_size = static_cast<int64_t>(in_channels / groups_val);
-  const int32_t out_group_size = static_cast<int64_t>(out_channels / groups_val);
+  const int32_t out_group_size =
+      static_cast<int64_t>(out_channels / groups_val);
 
   const utils::uvec3 global_size = {
       // out length