Add azure environment to KeyVaultKeyReference test job

Co-authored-by: MariusStorhaug <17722253+MariusStorhaug@users.noreply.github.com>

Author: Copilot

.github/workflows/TestWorkflow.yml

@@ -556,6 +556,7 @@ jobs:
 
   ActionTestWithKeyVaultKeyReference:
     name: WithKeyVaultKeyReference
+    environment: azure
     runs-on: ${{ inputs.runs-on }}
     steps:
       # Need to check out as part of the test, as its a local action