SDK deps updated; Go 1.26.4 and 1.25.11 now supported

8.19.4 (2026-06-05)

Bug Fixes

• bump SDK deps for EasyJSON removal (v4 cascade) (#666) (25babb1)
• deps: bump supported Go versions to 1.26.4 and 1.25.11 (#681) (d220142)

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