fix: Identify s3/remote uri path correctly

[ntkathole]

What this PR does / why we need it:

This is the fix to correctly identify the file path as relative or absolute or remote path using urllib urlparse, which checks both scheme and netloc, ensuring it's a remote URI.

This seems the regression introduced in #4624

Input cases :

Input URI -> Recognized As -> Behavior

• s3://bucket/data.parquet -> Remote -> Uses as-is
• /absolute/path/file.parquet -> Local -> Resolves normally
• relative/path/file.parquet -> Local -> Resolves against config.repo_path
• C:/path/to/file.parquet (Windows) -> Local -> Resolves correctly

Which issue(s) this PR fixes:

Fixes #4873 #4753 #4993

[franciscojavierarceo]

Thanks for this @ntkathole !!! Any chance you could add some unit tests so we can make sure this issue doesn't slip through going forward?

[ntkathole]

add some unit tests so we can make sure this issue doesn't slip through going forward?

Done!

[franciscojavierarceo]

one last nit, otherwise lgtm! approving in advance