Update release.yml

Author: gitcomit8

.github/workflows/release.yml

@@ -27,6 +27,9 @@ jobs:
 
     - name: Add Rust kernel target
       run: rustup target add x86_64-unknown-none
+    - name: Install rust-src component
+      run: rustup component add rust-src --toolchain nightly-x86_64-unknown-linux-gnu
+
 
     - name: Build ISO image
       run: make iso