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#### Why I did it
Upgrade xgs SAI version to 13.2.1.2 to include the following fixes:

- CS00012420291: Unexpected syncd ERR logs for SAI_API_SWITCH:sai_query_switch_attribute_enum_values_capability
- CS00012414366: IN_IF_DISCARDS to exclude PFC/PAUSE
- CS00012419713: Skip E2E Port TCG CIR for DNX2 devices

##### Work item tracking
- Microsoft ADO **(number only)**: 34648177

#### How I did it
Update xgs SAI version in sai.mk.

#### How to verify it
Load image on SONiC DUT, all containers are running.

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#### Which release branch to backport (provide reason below if selected)

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- [x] 202412
- [x] 202505

Signed-off-by: zitingguo-ms <[email protected]>