fix: invalid character in header on Windows

[szymonrybczak]

Summary:

Fixes#2279
Fixes#2449

Some paths to current working directory contains characters that are invalid for header inside the request specifically on Windows - by wrapping path inside URL() class we're sure that characters are correctly coded.

Checklist

• Documentation is up to date to reflect these changes.
• Follows commit message convention described in CONTRIBUTING.md

[github-actions]

There hasn't been any activity on this pull request in the past 3 months, so it has been marked as stale and it will be closed automatically if no further activity occurs in the next 7 days.

[szymonrybczak]

cc @huntie can you take a look if this one doesn't introduce any regressions?

[github-actions]

There hasn't been any activity on this pull request in the past 3 months, so it has been marked as stale and it will be closed automatically if no further activity occurs in the next 7 days.

[huntie]

@szymonrybczak I don't really have a Windows machine to hand, please validate on your end.

[github-actions]

There hasn't been any activity on this pull request in the past 3 months, so it has been marked as stale and it will be closed automatically if no further activity occurs in the next 7 days.