ci: Remove hardcoded default in setup-rust action

.forgejo/actions/setup-rust/action.yml

@@ -19,7 +19,7 @@ inputs:
   rust-version:
     description: 'Rust version to install (e.g. nightly). Defaults to 1.87.0'
     required: false
-    default: '1.87.0'
+    default: ''
   sccache-cache-limit:
     description: 'Maximum size limit for sccache local cache (e.g. 2G, 500M)'
     required: false

.forgejo/workflows/update-flake-hashes.yml

@@ -20,7 +20,8 @@ jobs:
           fetch-tags: false
           fetch-single-branch: true
           submodules: false
-          persist-credentials: false
+          persist-credentials: true
+          token: ${{ secrets.FORGEJO_TOKEN }}
 
       - uses: https://github.com/cachix/install-nix-action@7ab6e7fd29da88e74b1e314a4ae9ac6b5cda3801 # v31.8.0
         with:

nix/packages/rust.nix

@@ -15,7 +15,7 @@
             file = inputs.self + "/rust-toolchain.toml";
 
             # See also `rust-toolchain.toml`
-            sha256 = "sha256-+9FmLhAOezBZCOziO0Qct1NOrfpjNsXxc/8I0c7BdKE=";
+            sha256 = "sha256-SJwZ8g0zF2WrKDVmHrVG3pD2RGoQeo24MEXnNx5FyuI=";
           };
         in
         {

rust-toolchain.toml

@@ -10,7 +10,7 @@
 
 [toolchain]
 profile = "minimal"
-channel = "1.89.0"
+channel = "1.90.0"
 components = [
     # For rust-analyzer
     "rust-src",