[Security] Bump urllib3 from 1.25.8 to 1.25.9

[dependabot-preview[bot]]

Bumps urllib3 from 1.25.8 to 1.25.9. This update includes a security fix.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

CRLF injection urllib3 before 1.25.9 allows CRLF injection if the attacker controls the HTTP request method, as demonstrated by inserting CR and LF control characters in the first argument of putrequest(). NOTE: this is similar to CVE-2020-26116.

Affected versions: < 1.25.9

Changelog

Sourced from urllib3's changelog.

1.25.9 (2020-04-16)

• Added InvalidProxyConfigurationWarning which is raised when erroneously specifying an HTTPS proxy URL. urllib3 doesn't currently support connecting to HTTPS proxies but will soon be able to and we would like users to migrate properly without much breakage.

  See this GitHub issue for more information on how to fix your proxy config. (Pull #1851)

• Drain connection after PoolManager redirect (Pull #1817)

• Ensure load_verify_locations raises SSLError for all backends (Pull #1812)

• Rename VerifiedHTTPSConnection to HTTPSConnection (Pull #1805)

• Allow the CA certificate data to be passed as a string (Pull #1804)

• Raise ValueError if method contains control characters (Pull #1800)

• Add __repr__ to Timeout (Pull #1795)

Commits

• 21758b0 Release v1.25.9
• c930dc0 Add InvalidProxyConfigurationWarning for HTTPS proxies
• 2ec3438 Fix flaky test by setting longer connect timeout
• 262ac6b Backslash terminates authority URL section
• c392b6c Fix documentation build by skipping Sphinx 3.0.0 (#1844)
• 6580893 Revert "Add context to find_unused_port"
• 308a08f Unwrap ProxyError when evaluating retries (#1830)
• 240aa20 Drain connection after PoolManager redirect (#1817)
• 5777ec4 Detect GitHub Actions as continuous integration (#1840)
• 8e1fe6c Switch macOS CI to GitHub Actions (#1839)
• Additional commits viewable in compare view

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