Automated update to Github CI to rustc nightly-2025-09-13

Update Nightly Rustc Bot · Update Nightly Rustc Bot · commit ce4ae1e2fba9 · 2025-09-15T00:37:48.000Z
diff --git a/nightly-version b/nightly-version
@@ -1 +1 @@
-nightly-2025-09-06
+nightly-2025-09-13
