DEP: Update dependency gdown to >=6.3.0,<6.4.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
gdown	>=6.2.0,<6.3.0 → >=6.3.0,<6.4.0

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Release Notes

wkentaro/gdown (gdown)

v6.3.0

Compare Source

Added

• Add a secretstorage installation extra for importing Chromium cookies from GNOME Keyring with pip install 'gdown[secretstorage]' or uvx --from 'gdown[secretstorage]' gdown. (#​505)
• download(), download_folder(), and cached_download() accept a requests-style timeout, exposed on the command line as --timeout SECONDS, so a stalled server no longer blocks forever. (#​510)
• Add opt-in --retries N and Python retries=N for automatic recovery of interrupted file and folder downloads, with bounded backoff and validated byte-range resume; --continue still controls reuse of earlier downloads. (#​517)

Changed

• cached_download() verifies hash while streaming instead of reading the finished file back from disk. (#​512)
• The command line reports a hit --timeout as a timeout instead of asking to file an issue. (#​513)

Fixed

• Propagate progress callback exceptions unchanged instead of misreporting chunked-encoding errors as incomplete downloads. (#​519)

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