Update .github/workflows/ci.yml

Author: utpilla

.github/workflows/ci.yml

@@ -56,7 +56,7 @@ jobs:
     - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       with:
         submodules: true
-    - uses: dtolnay/rust-toolchain@fcf085fcb4b4b8f63f96906cd713eb52181b5ea4 # stable
+    - uses: dtolnay/rust-toolchain@fcf085fcb4b4b8f63f96906cd713eb52181b5ea4
       with:
         components: rustfmt, clippy
     - uses: taiki-e/install-action@d4635f2de61c8b8104d59cd4aede2060638378cc # v2.49.45