Automated update to Github CI to rustc nightly-2025-05-18

Update Nightly Rustc Bot · Update Nightly Rustc Bot · commit 6427f8c09d43 · 2025-05-19T02:19:05.000Z
diff --git a/nightly-version b/nightly-version
@@ -1 +1 @@
-nightly-2024-08-04
+nightly-2025-05-18
