Automated update to Github CI to rustc nightly-2026-02-27

Update Nightly Rustc Bot · Update Nightly Rustc Bot · commit 27c91096f880 · 2026-02-28T02:35:29.000Z
diff --git a/nightly-version b/nightly-version
@@ -1 +1 @@
-nightly-2025-09-12
+nightly-2026-02-27
