Update dependency idna to v3

[dev-mend-for-github-com]

This PR contains the following updates:

Package	Update	Change
idna (changelog)	major	==2.8 → ==3.7

By merging this PR, the below vulnerabilities will be automatically resolved:

Severity	CVSS Score	Vulnerability
Medium	6.2	CVE-2024-3651

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Release Notes

kjd/idna (idna)

v3.7

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• Fix issue where specially crafted inputs to encode() could
  take exceptionally long amount of time to process. [CVE-2024-3651]

Thanks to Guido Vranken for reporting the issue.

v3.6

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• Fix regression to include tests in source distribution.

v3.5

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• Update to Unicode 15.1.0
• String codec name is now "idna2008" as overriding the system codec
  "idna" was not working.
• Fix typing error for codec encoding
• "setup.cfg" has been added for this release due to some downstream
  lack of adherence to PEP 517. Should be removed in a future release
  so please prepare accordingly.
• Removed reliance on a symlink for the "idna-data" tool to comport
  with PEP 517 and the Python Packaging User Guide for sdist archives.
• Added security reporting protocol for project

Thanks Jon Ribbens, Diogo Teles Sant'Anna, Wu Tingfeng for contributions
to this release.

v3.4

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• Update to Unicode 15.0.0
• Migrate to pyproject.toml for build information (PEP 621)
• Correct another instance where generic exception was raised instead of
  IDNAError for malformed input
• Source distribution uses zeroized file ownership for improved
  reproducibility

Thanks to Seth Michael Larson for contributions to this release.

v3.3

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• Update to Unicode 14.0.0
• Update to in-line type annotations
• Throw IDNAError exception correctly for some malformed input
• Advertise support for Python 3.10
• Improve testing regime on Github
• Fix Russian typo in documentation

Thanks to Jon Defresne, Hugo van Kemenade, Seth Michael Larson,
Patrick Ventuzelo and Boris Verhovsky for contributions to this
release.

v3.2

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• Better enforcement of the domain length limit in the incremental
  codec.

v3.1

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• Restore the std3_rules option, which had no effect since changes
  to UTS #​46 processing in Unicode 16. Note that uts46_remap()
  defaults to enabling STD3 rules, so direct callers will see input
  containing non-LDH ASCII characters rejected again.
• Performance improvements to UTS #​46 mapping, particularly for
  ASCII-only domains.
• Test on free-threaded CPython with the GIL disabled and document
  thread safety.
• Expose the Unicode version of the generated tables as
  idna.unicode_version, and show it in idna --version.
• Add code, text, codepoint and position attributes to
  IDNAError so that the failed rule and the offending character can
  be identified without parsing the exception message.
• The deprecated transitional argument to encode() and
  uts46_remap() is now completely ignored, and gives a deprecation warning
  for the latter.
• Reject A-labels that are not the canonical Punycode encoding of
  their U-label.
• Fix CONTEXTJ violations raising IDNAError instead of
  InvalidCodepointContext.
• Consistently raise IDNAError for empty labels and non-ASCII bytes
  passed to label helper functions and the incremental codec.
• Add property-based tests, extended fuzzing targets, coverage
  measurement, and CI checks that the data tables match the generator
  output.
• Various code quality and tooling improvements.

Thanks to stefan6419846, LouieLuNZ, and Salvatore Corvaglia for
contributions to this release.

v3.0

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• Python 2 is no longer supported (the 2.x branch supports Python 2,
  use "idna<3" in your requirements file if you need Python 2 support)
• Support for V2 UTS 46 test vectors.

v2.10

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• Update to Unicode 13.0.0.
• Throws a more specific exception if "xn--" is provided as a label.
• This is expected to be the last version that supports Python 2.

v2.9

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• Update to Unicode 12.1.0.
• Prohibit A-labels ending with a hyphen (Thanks, Julien Bernard!)
• Future-proofing: Test on Python 3.7 and 3.8, don't immediately
  fail should Python 4 come along.
• Made BSD 3-clause license clearer

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