ci: Upgrade the version of Rust nightly

Signed-off-by: Kévin Commaille <zecakeh@tedomum.fr>

.github/workflows/ci.yml

@@ -309,7 +309,7 @@ jobs:
       - name: Install Rust
         uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: nightly-2025-06-27
+          toolchain: nightly-2025-08-08
           components: clippy, rustfmt
 
       - name: Load cache

.github/workflows/documentation.yml

@@ -31,7 +31,7 @@ jobs:
       - name: Install Rust
         uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: nightly-2025-06-27
+          toolchain: nightly-2025-08-08
 
       - name: Install Node.js
         uses: actions/setup-node@v4

xtask/src/main.rs

@@ -17,7 +17,7 @@ use release::ReleaseArgs;
 use swift::SwiftArgs;
 use xshell::{Shell, cmd};
 
-const NIGHTLY: &str = "nightly-2025-06-27";
+const NIGHTLY: &str = "nightly-2025-08-08";
 
 type Result<T, E = Box<dyn std::error::Error>> = std::result::Result<T, E>;