Automated update to Github CI to rustc nightly-2025-08-22

Update Nightly Rustc Bot · Update Nightly Rustc Bot · commit b96a7c4996a8 · 2025-08-23T02:01:25.000Z
diff --git a/nightly-version b/nightly-version
@@ -1 +1 @@
-nightly-2025-03-21
+nightly-2025-08-22
