fix(appsec): handle unparseable URLs gracefully

[LaurenceJJones]

Add permissive ParseURL function that falls back to storing the raw
value in URL.Opaque when Go's url.Parse fails. This fixes CONNECT
requests with authority-form URIs like 116.202.157.104:80.

Fixes #4152

We want to ensure that we dont get in the way of requests getting to coraza an early error means it never gets there.

[github-actions]

@LaurenceJJones: There are no 'kind' label on this PR. You need a 'kind' label to generate the release automatically.

• /kind feature
• /kind enhancement
• /kind refactoring
• /kind fix
• /kind chore
• /kind dependencies

Details

I am a bot created to help the crowdsecurity developers manage community feedback and contributions. You can check out my manifest file to understand my behavior and what I can do. If you want to use this for your project, you can check out the BirthdayResearch/oss-governance-bot repository.

[github-actions]

@LaurenceJJones: There are no area labels on this PR. You can add as many areas as you see fit.

• /area agent
• /area local-api
• /area cscli
• /area appsec
• /area security
• /area configuration

Details

I am a bot created to help the crowdsecurity developers manage community feedback and contributions. You can check out my manifest file to understand my behavior and what I can do. If you want to use this for your project, you can check out the BirthdayResearch/oss-governance-bot repository.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 63.62%. Comparing base (5da924c) to head (6d1d90b).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4270      +/-   ##
==========================================
+ Coverage   63.07%   63.62%   +0.55%     
==========================================
  Files         472      455      -17     
  Lines       33426    32694     -732     
==========================================
- Hits        21082    20802     -280     
+ Misses      10224     9818     -406     
+ Partials     2120     2074      -46     

Flag	Coverage Δ
bats	46.61% <66.66%> (+0.02%)	⬆️
unit-linux	35.92% <83.33%> (-0.07%)	⬇️
unit-windows	?

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