ci: update rust toolchain

Author: Thaumy

.github/workflows/build-dev.yml

@@ -35,7 +35,7 @@ jobs:
         with:
           profile: minimal
           override: true
-          toolchain: nightly-2023-06-09
+          toolchain: nightly-2023-09-06
           components: rustfmt, clippy
 
       - name: Add target

.github/workflows/build-release.yml

@@ -29,7 +29,7 @@ jobs:
         with:
           profile: minimal
           override: true
-          toolchain: nightly-2023-06-09
+          toolchain: nightly-2023-09-06
           components: rustfmt, clippy
 
       - name: Add target