Description:

Describe the issue.

Today, we sort Gateway API resources in the gateway-api layer to ensure stable order in the IR
#6599

This responsibility can be moved to the provider layer to ensure resources are sorted when consumed by the gateway-api layer

This avoids

• the need for a custom XDS IR Equal function that performs DeepCopy and sort

  gateway/internal/ir/xds.go

  Line 164 in 7e22545

  func (x *Xds) Equal(y *Xds) bool {

  using more CPU and memory
• out of order provider resources will now be in order, avoiding a redundant gateway-api translation and a status update, taken care by watchable

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