Update dependency urllib3 to v1.26.20

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
urllib3 (changelog)	==1.26.9 → ==1.26.20

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Release Notes

urllib3/urllib3 (urllib3)

v1.26.20

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• Fixed a crash where certain standard library hash functions were absent in
  FIPS-compliant environments.
  (#&#8203;3432 <https://github.com/urllib3/urllib3/issues/3432>__)
• Replaced deprecated dash-separated setuptools entries in setup.cfg.
  (#&#8203;3461 <https://github.com/urllib3/urllib3/pull/3461>__)
• Took into account macOS setting ECONNRESET instead of EPROTOTYPE in
  its newer versions.
  (#&#8203;3416 <https://github.com/urllib3/urllib3/pull/3416>__)
• Backported changes to our tests and CI configuration from v2.x to support
  testing with CPython 3.12 and 3.13.
  (#&#8203;3436 <https://github.com/urllib3/urllib3/pull/3436>__)

v1.26.19

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• Added the Proxy-Authorization header to the list of headers to strip from requests when redirecting to a different host. As before, different headers can be set via Retry.remove_headers_on_redirect.
• Fixed handling of OpenSSL 3.2.0 new error message for misconfiguring an HTTP proxy as HTTPS. (#&#8203;3405 <https://github.com/urllib3/urllib3/issues/3405>__)

v1.26.18

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• Made body stripped from HTTP requests changing the request method to GET after HTTP 303 "See Other" redirect responses.

v1.26.17

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• Added the Cookie header to the list of headers to strip from requests when redirecting to a different host. As before, different headers can be set via Retry.remove_headers_on_redirect. (#&#8203;3139 <https://github.com/urllib3/urllib3/pull/3139>_)

v1.26.16

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• Fixed thread-safety issue where accessing a PoolManager with many distinct origins
  would cause connection pools to be closed while requests are in progress (#&#8203;2954 <https://github.com/urllib3/urllib3/pull/2954>_)

v1.26.15

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• Fix socket timeout value when HTTPConnection is reused (#&#8203;2645 <https://github.com/urllib3/urllib3/issues/2645>__)
• Remove "!" character from the unreserved characters in IPv6 Zone ID parsing
  (#&#8203;2899 <https://github.com/urllib3/urllib3/issues/2899>__)
• Fix IDNA handling of '\x80' byte (#&#8203;2901 <https://github.com/urllib3/urllib3/issues/2901>__)

v1.26.14

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• Fixed parsing of port 0 (zero) returning None, instead of 0. (#&#8203;2850 <https://github.com/urllib3/urllib3/issues/2850>__)
• Removed deprecated getheaders() calls in contrib module. Fixed the type hint of PoolKey.key_retries by adding bool to the union. (#&#8203;2865 <https://github.com/urllib3/urllib3/issues/2865>__)

v1.26.13

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• Deprecated the HTTPResponse.getheaders() and HTTPResponse.getheader() methods.
• Fixed an issue where parsing a URL with leading zeroes in the port would be rejected
  even when the port number after removing the zeroes was valid.
• Fixed a deprecation warning when using cryptography v39.0.0.
• Removed the <4 in the Requires-Python packaging metadata field.

v1.26.12

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• Deprecated the urllib3[secure] extra and the urllib3.contrib.pyopenssl module.
  Both will be removed in v2.x. See this GitHub issue <https://github.com/urllib3/urllib3/issues/2680>_
  for justification and info on how to migrate.

v1.26.11

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• Fixed an issue where reading more than 2 GiB in a call to HTTPResponse.read would
  raise an OverflowError on Python 3.9 and earlier.

v1.26.10

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• Removed support for Python 3.5
• Fixed an issue where a ProxyError recommending configuring the proxy as HTTP
  instead of HTTPS could appear even when an HTTPS proxy wasn't configured.

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