Update secp256k1 submodule pointer to v0.7.1 (1a53f49)

Aligns the recorded commit with the v0.7.1 tag actually checked out
in the working tree. Carrying forward; no code change.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
2026-04-29 03:07:14 -07:00
parent 55c202516d
commit 0f2cf711db