add more node version test to unsupported guardrails matrix (#4879)

Author: rochdev

.github/workflows/project.yml

@@ -47,7 +47,7 @@ jobs:
   integration-guardrails-unsupported:
     strategy:
       matrix:
-        version: ['0.10', '4', '6', '8', '10']
+        version: ['0.8', '0.10', '0.12', '4', '6', '8', '10']
     runs-on: ubuntu-latest
     env:
       DD_INJECTION_ENABLED: 'true'