Add use-global-suppressions to Dependency Check step

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

AI-Session-Id: 30749615-dd11-4492-a0b3-073c7aee2197
AI-Tool: claude-code
AI-Model: unknown

Author: kunalvaswani123

.github/workflows/pr-build.yml

@@ -29,3 +29,4 @@ jobs:
         uses: hypertrace/github-actions/dependency-check@main
         with:
           nvd-api-key: ${{ secrets.NVD_API_KEY }}
+          use-global-suppressions: true