Add URL clustering package

[eskirk]

What this PR does:
This PR aims to add a new package to dskit called clusterurl which will process a string URL and return a generic "page route".

For example, the path "/foo/42/baz" would be replaced with "/foo/*/baz".

Which issue(s) this PR fixes:
This solves issue #privateIssue. Additionally, since both the Frontend Observability and Beyla/Instrumentations teams plan on using this functionality, it is best to put it in a place where it is easily reusable and discoverable.

Checklist

• Tests updated
• CHANGELOG.md updated - the order of entries should be [CHANGE], [FEATURE], [ENHANCEMENT], [BUGFIX]

Notes
Thanks to @grcevski and the Beyla team for creating this code - I am just packaging it up for them :)

[grcevski]

LGTM! Thanks for making this part of a generic library, once merged we can start using this common package in Beyla.

[56quarters]

I'm skeptical that this makes sense to put in dskit. This seems very specific to your application, even if it would happen to be used by multiple projects. It doesn't seem unreasonable to make another repo for this shared dependency between the projects in question.

[56quarters]

Blocking because dskit is isn't meant to be the only way to share dependencies between projects, another repo would make more sense for this particular functionality.

[eskirk]

@56quarters got it - that makes sense to me. I was told this would be a good place to put it so I am not super invested in it necessarily being in this repo. going to close this PR in that case 👍🏼