Upgrade rust toolchain to nightly-2025-01-01

Author: Rahix

.github/workflows/ci.yml

@@ -106,7 +106,7 @@ jobs:
       - name: Install Rust
         uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: nightly-2023-12-28
+          toolchain: nightly-2025-01-01
           components: rust-src
       - name: Install avr-gcc, binutils, and libc
         run: sudo apt-get install -y avr-libc binutils-avr gcc-avr

rust-toolchain.toml

@@ -1,4 +1,4 @@
 [toolchain]
-channel = "nightly-2024-03-22"
+channel = "nightly-2025-01-01"
 components = [ "rust-src" ]
 profile = "minimal"