Update lean-toolchain for testing leanprover/lean4#11005

leanprover-community-mathlib4-bot · leanprover-community-mathlib4-bot · commit 565d240f11a3 · 2025-10-29T08:04:47.000Z
diff --git a/lean-toolchain b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:nightly-2025-10-20
+leanprover/lean4-pr-releases:pr-release-11005-80d2a1a

Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		`-leanprover/lean4:nightly-2025-10-20`
	`1`	`+leanprover/lean4-pr-releases:pr-release-11005-80d2a1a`