Update apim_checklist.en.json

[michalsadowski]

Added waf tag for f96ddac5-77ec-4fa9-8833-4327f052059e check

Description

I have added WAF tag for f96ddac5-77ec-4fa9-8833-4327f052059e

Checklist

• [ x] I've tested my changes to ensure they are ready for review.
• [ x] I've read the CONTRIBUTING.md guide.
• [ x] I've updated the documentation (if applicable).
• Resource Graph queries have been included (and tested) for recommendations where ever possible¹.
• [ x] Resource Graph queries have NOT been included (please explain below).

Additional Information

Change helps in reporting as the WAF tag was missing

Footnotes

1. Details on how to add Azure Resource Graph queries to recommendations can be found here. ↩