Update to Substrait v0.102.0

[substrait-project-bot]

Release Notes

0.102.0 (2026-08-23)

⚠ BREAKING CHANGES

• protos: deprecates the offset field of the Preceding and
  Following window bounds in favor of the new offset_expr field, which
  accepts an arbitrary expression instead of an integer literal. Consumers
  should add offset_expr support before producers switch to it. The PR
  also requires explicit window frame bounds type. Producers should set
  the bounds type and Consumers should reject BOUNDS_TYPE_UNSPECIFIED in
  such cases.

Features

• extensions: add a decimal overload for negate (#1177) (6092523)
• protos: support expression in window aggregate bounds (#1105) (6706015), closes #748 #617 #930

See https://github.com/substrait-io/substrait/releases/tag/v0.102.0