[saisubmodule] Update SAI submodule

[jimmyzhai]

Update SAI submodule to include opencomputeproject/SAI#2026, which updates outbound_routing_entry. It updates serialization/deserialization, test, etc for outbound_routing_entry.

Includes the following SAI commits:

2024-07-23 684a8ee Mukesh Moopath Velayudhan: Add DPU acronym (#2053)
2024-07-18 7455ddf mikeberesford: Add port attribute to get the max debug data size. (#2033)
2024-07-15 dff0e34 Riff: Update DASH SAI API comments (#2050)
2024-07-15 8e74c55 Riff: Update DASH pipeline and HA related counters. (#2051)
2024-07-14 d15eca7 Kamil Cudnik: [meta][sai] Move extensions SAI and API to 0x20000000 range (#2028)
2024-07-10 19b30c1 chikkaiah-work: SAI proposal for icmp echo offload (#2020)
2024-06-27 18ba20f Marian Pritsak: [DASH] Add Routing Group API (#2026)
2024-06-25 abc8f02 Marian Pritsak: [DASH] Add missing prefixes to PL mapping (#2035)

[kperumalbfn]

@jimmyzhai Please update the PR description about adding serialize/deserialize change.

[kperumalbfn]

Any other changes required due to SAI refpoint update?

[jimmyzhai]

Any other changes required due to SAI refpoint update?

No. Later let icmp echo feature owner implement its detail notification callback.

[theasianpianist]

Just FYI I have a PR that updates the submodule + also updates sairedis code for the route group API changes #1410

[jimmyzhai]

@jimmyzhai Please update the PR description about adding serialize/deserialize change.

done

[prabhataravind]

@jimmyzhai, there are some more changes in public sairedis repo that includes metering related changes. Could you please help include those as well in this PR?

[kcudnik]

Please fix build errors

[jimmyzhai]

@jimmyzhai, there are some more changes in public sairedis repo that includes metering related changes. Could you please help include those as well in this PR?

Had tried that, but PR opencomputeproject/SAI#2056 for metering changes caused other sairedis build failure, which is not easy to handle in this PR.

[jimmyzhai]

Please fix build errors

It depends on sonic-net/sonic-swss#3048, which has fix for outbound_routing_entry changes in swss. The sairedis PR won't pass without the swss change, but the swss PR also won't pass without the sairedis PR. It's a sort of circular dependency.

After a discussion with Lawrence(theasianpianist), he had proposed the below solution:

1. I will open my swss PR when it is ready, and also change the swss PR tests to use the artifacts from Junhua's submodule update PR
2. Assuming that the PR tests pass with these changes, force merge Junhua's sairedis PR, then my swss PR.
3. Finally submit another swss PR to change the PR test artifacts back to the latest build