Automated update to Github CI to rustc nightly-2025-06-06

Update Nightly Rustc Bot · Update Nightly Rustc Bot · commit 4fd65dd61bad · 2025-06-07T02:08:11.000Z
diff --git a/nightly-version b/nightly-version
@@ -1 +1 @@
-nightly-2025-03-21
+nightly-2025-06-06
