Fix IPv6 handling when converting file URL to UNC path

[rmisev]

The IPv6 address is converted to the UNC-supported IPv6 format: colons are replaced by hyphens and .ipv6-literal.net is appended. This is necessary because colons are not valid in UNC path components.

More information:

• https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-dtyp/62e862f4-2a51-452e-8eeb-dc4ff5ee33cc
• https://en.wikipedia.org/wiki/IPv6_address#Literal_IPv6_addresses_in_UNC_path_names

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 99.66%. Comparing base (cd67f44) to head (8655991). Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #64 +/- ## ======================================= Coverage 99.66% 99.66% ======================================= Files 16 16 Lines 2369 2373 +4 Branches 385 386 +1 ======================================= + Hits 2361 2365 +4 Misses 8 8 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.