commonlib: add more details to "Information Leakage" vulnerability

[joshua530]

Adds more solutions and reference links to Information Leakage vulnerability.

Part of zaproxy/zaproxy#8056

[github-actions[bot]]

All contributors have signed the CLA ✍️ ✅
_{Posted by the CLA Assistant Lite bot.}

[joshua530]

I have read the CLA Document and I hereby sign the CLA

[kingthorin]

CHANGELOG.md should also be updated. I'm sure if you scroll a bit you can find related previous entries.

[joshua530]

My apologies for forgetting. I've made the changes.

[psiinon]

Note for the team - the vulnerabilities.xml file was originally imported from the WASC website. I dont think that WASC is being maintained any more, so I dont anticipate us having to import this file again. Are we ok maintaining our own version of this, or would we rather update the rules directly?

[thc202]

Rebased to address the conflict, adjust the changelog entry (more specific and under Changed), and update the tests.

[thc202]

Thank you!

[psiinon]

Checkmarx One – Scan Summary & Details – f07ed8e8-29eb-41ba-96f3-1505218d7ab5

No New Or Fixed Issues Found