chore: bump toolchain to v4.15.0

#281 adapt code to v4.15.0 and fix long heartbeats, e.g., toDualRep_apply_eq_contrOneTwoLeft.

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Co-authored-by: jstoobysmith <72603918+jstoobysmith@users.noreply.github.com>
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KUO-TSAN HSU (Gordon) 2025-01-20 15:42:53 +08:00 committed by GitHub
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49 changed files with 484 additions and 472 deletions

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@ -1 +1 @@
leanprover/lean4:v4.14.0
leanprover/lean4:v4.15.0