fix(ci): update cargo-deny to 0.18.9 for CVSS 4.0 support (#519)

The RustSec advisory database now includes advisories with CVSS 4.0
scores. cargo-deny 0.16.2 doesn't support parsing CVSS 4.0, causing
the advisories check to fail.

Update to 0.18.9 which includes rustsec 0.31 with CVSS 4.0 support.

Author: joshrotenberg

.github/workflows/cargo-deny.yml

@@ -47,7 +47,7 @@ jobs:
       - name: Install cargo-deny
         uses: taiki-e/install-action@v2
         with:
-          tool: cargo-deny@0.16.2
+          tool: cargo-deny@0.18.9
 
       - name: Run cargo-deny
         run: cargo deny --all-features check ${{ matrix.checks }}