[feat: gw api][bug fix] generate sg rules using listener protocols

[shraddhabang]

Description

1. This PR fixes the generation of sg rules using listener protocols instead route protocols and its corresponding tests
2. I have removed the the check of spec and deletion updates from gwclass event handler since we want to reconcile the gateways impacted by gatewayclass if we change the lb configuration attached to gateway. We update the last updated version on gw class when we change the lb conf referrered by gwclass. Hence as soon as it changes, we wanna enqueue all the impacted gateways.
3. Small logger update.

Checklist

• Added tests that cover your change (if possible)
• Added/modified documentation as required (such as the README.md, or the docs directory)
• Manually tested
• Made sure the title of the PR is a good description that can go into the release notes

BONUS POINTS checklist: complete for good vibes and maybe prizes?! 🤯

• Backfilled missing tests for code in same general area 🎉
• Refactored something and made the world a better place 🌟

[k8s-ci-robot]

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This pull-request has been approved by: shraddhabang

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