Automated update to Github CI to rustc nightly-2026-03-13

Update Nightly Rustc Bot · Update Nightly Rustc Bot · commit 81b61162d6af · 2026-03-14T02:47:12.000Z
diff --git a/nightly-version b/nightly-version
@@ -1 +1 @@
-nightly-2026-02-20
+nightly-2026-03-13
