Enable davs replicas in the Rucio DID finder

[ponyisi]

Accept davs replicas and prioritize these first. (To be discussed if we want to keep this order, but it's inspired by discussions at the 2025 retreat.)

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.16%. Comparing base (2bd6e3e) to head (015d731).
⚠️ Report is 6 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1204      +/-   ##
===========================================
+ Coverage    85.77%   86.16%   +0.39%     
===========================================
  Files           94       94              
  Lines         3191     3347     +156     
  Branches       359      388      +29     
===========================================
+ Hits          2737     2884     +147     
- Misses         380      390      +10     
+ Partials        74       73       -1     

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[Copilot]

Pull Request Overview

This PR adds support for the WebDAV Secure (davs) protocol by including "davs" in the list of supported schemes when listing replicas from Rucio, and converting davs URLs to https for use by the transformer.

• Added "davs" to the list of schemes requested from Rucio's replica client
• Implemented URL conversion from davs:// to https:// in the transformer pipeline
• Integrated the conversion step into the file path processing flow

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
did_finder_rucio/src/rucio_did_finder/rucio_adapter.py	Added "davs" to the list of schemes for replica listing to enable retrieval of WebDAV Secure URLs
transformer_sidecar/src/transformer_sidecar/transformer.py	Added re import, implemented change_davs_to_https function, and integrated davs-to-https URL conversion into the transform_file pipeline

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[ponyisi]

Addresses #1174

[ponyisi]

Following discussion I am going to deprioritize davs vs rootd for now, but keep the replicas in the list.