Update lean-toolchain for testing leanprover/lean4#11019

leanprover-bot · leanprover-bot · commit 7de27557c511 · 2025-11-13T13:49:12.000Z
diff --git a/lean-toolchain b/lean-toolchain
@@ -1 +1 @@
-leanprover/lean4:nightly-2025-11-13
+leanprover/lean4-pr-releases:pr-release-11019-20dc6d3

Original file line number	Diff line number	Diff line change
`@@ -1 +1 @@`
`1`		`-leanprover/lean4:nightly-2025-11-13`
	`1`	`+leanprover/lean4-pr-releases:pr-release-11019-20dc6d3`