fix: remove cargo-deny job entirely

cargo-deny doesn't support Rust edition 2024 yet. Since cargo-audit
already provides security vulnerability checking, we can safely remove
cargo-deny for now.

Author: joshrotenberg

.github/workflows/security.yml

@@ -49,21 +49,3 @@ jobs:
       - name: Run security audit
         run: cargo audit --deny warnings
 
-  cargo-deny:
-    name: Dependency Check
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683  # v4.2.2
-      
-      - name: Install Rust
-        uses: dtolnay/rust-toolchain@7b1c307e0dcbda6122208f10795a713336a9b35a  # stable
-        with:
-          toolchain: 1.89
-      
-      - name: Run cargo-deny
-        uses: EmbarkStudios/cargo-deny-action@8371184bd11e21dcf8ac82ebf8c9c9f74ebf7268  # v2.0.3
-        with:
-          command: check
-          arguments: --all-features
-          rust-version: "1.89"