Update lean-toolchain for testing leanprover/lean4#14184

leanprover-bot · leanprover-bot · commit 7390b88bf976 · 2026-06-25T20:28:59.000Z
diff --git a/lean-toolchain b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:nightly-2026-06-25
+leanprover/lean4-pr-releases:pr-release-14184-487c6d8

Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		`-leanprover/lean4:nightly-2026-06-25`
	`1`	`+leanprover/lean4-pr-releases:pr-release-14184-487c6d8`