🐛Traefik v3: adapt Go regexp (2nd trial)

[sanderegg]

What do these changes do?

• this should fix the CORS error in the deployments.
• might break it in the local builds

Related issue/s

How to test

Dev-ops checklist

• No ENV changes or I properly updated ENV (read the instruction)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.1%. Comparing base (cafbf96) to head (f001553).
Report is 484 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##           master   #6273      +/-   ##
=========================================
+ Coverage    84.5%   88.1%    +3.5%     
=========================================
  Files          10    1476    +1466     
  Lines         214   61075   +60861     
  Branches       25    2063    +2038     
=========================================
+ Hits          181   53849   +53668     
- Misses         23    6911    +6888     
- Partials       10     315     +305     

Flag	Coverage Δ
integrationtests	64.8% <ø> (?)
unittests	86.1% <ø> (+1.5%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...ules/dynamic_sidecar/docker_service_specs/proxy.py	100.0% <ø> (ø)

... and 1425 files with indirect coverage changes

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[mrnicegyu11]

thx good luck