Add support for closest match while matching the urls for rule selection

[dadrus]

Preflight checklist

• I agree to follow this project's Code of Conduct.
• I have read and am following this repository's Contribution Guidelines."
• I have discussed this feature request with the community.

Describe the background of your feature request

As of today heimdall matches the urls of incoming requests either based on regular expressions or globs. While doing this it iterates over available rules in the order of their definition in the rule set. First match wins. While this approach is pretty simple and also straight forward in sense of rules definitions in a rule set - define the most specific rule first, it might be challenging to follow for bigger rule sets.

Describe your idea

The idea is to relax the above said rule so that there is no requirement to order rules in a rule set and let heilmdall calculate the Levenshtein distance instead for all matches and select the shortest for the given url and the match expressions in the matched rules.

That would simplify the rule set development - no need for a specific order any more if order matters

Are there any workarounds or alternatives?

Like written above, the rules must be ordered in the rule set with most specific at the top if the matching expressions in the defined rules would match same urls.

Version

v0.7.0-alpha

Additional Context

No response