chore: 🐝 Update SDK - Generate SDK 1.5.6

[github-actions]

Important

Linting report available at: https://app.speakeasy.com/org/gr4vy/gr4vy/linting-report/d22592082beb88c0f8a6a7bc727d3028
OpenAPI Change report available at: https://app.speakeasy.com/org/gr4vy/gr4vy/changes-report/37c97f9250d04322bc4794208bcb1f2a

SDK update

Versioning

Version Bump Type: [patch] - 🤖 (automated)

OpenAPI Change Summary

└─┬Paths
  ├─┬/merchant-accounts/{merchant_account_id}/three-ds-configuration
  │ └─┬GET
  │   └─┬Parameters
  │     └─┬Schema
  │       └──[🔀] examples (19411:17)
  └─┬/merchant-accounts/{merchant_account_id}/three-ds-configuration/{merchant_profile_id}
    └─┬PUT
      └─┬Parameters
        └─┬Schema
          └──[🔀] examples (19612:17)

Document Element	Total Changes	Breaking Changes
paths	2	0

PHP CHANGELOG

core: 3.9.7 - 2025-12-19

🐛 Bug Fixes

• JSON serialize mixed types as-is instead of being stringified (commit by @bflad)

core: 3.9.6 - 2025-12-18

🐛 Bug Fixes

• fixed escaping of template braces in defaults, consts, and comments (commit by @tristanspeakeasy)

Based on Speakeasy CLI 1.682.0