Automated update to Github CI to rustc nightly-2025-08-23

Update Nightly Rustc Bot · Update Nightly Rustc Bot · commit 22dc59c939d6 · 2025-08-25T00:37:46.000Z
diff --git a/nightly-version b/nightly-version
@@ -1 +1 @@
-nightly-2025-08-19
+nightly-2025-08-23
