ci: exercise more of the guardrails code during testing (#6034)

Author: watson

.github/workflows/platform.yml

@@ -304,6 +304,8 @@ jobs:
       matrix:
         version: ['0.8', '0.10', '0.12', '4', '6', '8', '10', '12']
     runs-on: ubuntu-latest
+    env:
+      DD_TRACE_DEBUG: 'true' # This exercises more of the guardrails code
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - uses: ./.github/actions/node