remove sandbox from deploy matrix to avoid sandbox for pentesting

Author: gfreeman-navapbc

.github/workflows/tf-github-actions-role.yml

@@ -40,7 +40,7 @@ jobs:
       fail-fast: false
       matrix:
         app: [ab2d, bcda, dpc]
-        env: [dev, test, sandbox, prod]
+        env: [dev, test, prod]
         include:
           - app: cdap
             env: mgmt