Fix workflow: correct Rust action name and add manual trigger

Author: cristim

.github/workflows/release.yml

@@ -4,6 +4,7 @@ on:
   push:
     tags:
       - 'v*'
+  workflow_dispatch:
 
 permissions:
   contents: write
@@ -55,7 +56,7 @@ jobs:
           cache: 'npm'
 
       - name: Install Rust stable
-        uses: dtolnay/rust-action@stable
+        uses: dtolnay/rust-toolchain@stable
         with:
           targets: ${{ matrix.rust_target }}