Add posix in azure.yaml file

Author: NirajC3-Microsoft

azure.yaml

@@ -22,3 +22,13 @@ hooks:
         Write-Host ""
       shell: pwsh
       interactive: true
+    posix:
+      run: |
+        echo ""
+        echo "\033[33m  ---------------------------------------------------------------------------------------------------\033[0m"
+        echo "\033[33m  Note: If deployment fails or you encounter an issue, please open an issue with the deployment logs.\033[0m"
+        echo "\033[36m  https://github.com/microsoft/content-processing-solution-accelerator/issues\033[0m"
+        echo "\033[33m  ---------------------------------------------------------------------------------------------------\033[0m"
+        echo ""
+      shell: sh
+      interactive: true