chore: bump rustfmt toolchain to nightly-2025-09-09

mohe2015 · mohe2015 · commit 3cf545243f5c · 2025-09-10T00:32:35.000+02:00
diff --git a/rust-toolchain b/rust-toolchain
@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2025-04-02"
+channel = "nightly-2025-09-09"
 components = ["llvm-tools", "rustc-dev"]
