Update dependency urllib3 to v2.6.3

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
urllib3 (changelog)	==2.6.0 → ==2.6.3

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Release Notes

urllib3/urllib3 (urllib3)

v2.6.3

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• Fixed a high-severity security issue where decompression-bomb safeguards of
  the streaming API were bypassed when HTTP redirects were followed.
  (GHSA-38jv-5279-wg99 <https://github.com/urllib3/urllib3/security/advisories/GHSA-38jv-5279-wg99>__)
• Started treating Retry-After times greater than 6 hours as 6 hours by
  default. (#&#8203;3743 <https://github.com/urllib3/urllib3/issues/3743>__)
• Fixed urllib3.connection.VerifiedHTTPSConnection on Emscripten.
  (#&#8203;3752 <https://github.com/urllib3/urllib3/issues/3752>__)

v2.6.2

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• Fixed HTTPResponse.read_chunked() to properly handle leftover data in
  the decoder's buffer when reading compressed chunked responses.
  (#&#8203;3734 <https://github.com/urllib3/urllib3/issues/3734>__)

v2.6.1

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• Restore previously removed HTTPResponse.getheaders() and
  HTTPResponse.getheader() methods.
  (#&#8203;3731 <https://github.com/urllib3/urllib3/issues/3731>__)

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