build(deps): bump the production-dependencies group across 1 directory with 4 updates

[dependabot]

Bumps the production-dependencies group with 4 updates in the /docs directory: certifi, idna, requests and snowballstemmer.

Updates certifi from 2026.4.22 to 2026.5.20

Commits

• d7ea151 2026.05.20 (#413)
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Updates idna from 3.15 to 3.16

Changelog

Sourced from idna's changelog.

3.16 (2026-05-22)

• Add a command-line interface (python -m idna, also available as the idna script). Encodes or decodes one or more domains supplied as arguments or on standard input, with options to select A-label or U-label output and control error handling.
• Raise the minimum supported Python version to 3.9
• Various code quality improvements

Commits

• 6d1a0de Release 3.16
• 4e6cbe2 Demote installation instruction to usage section
• 223533c Merge branch 'readme-simplification' into release-3.16
• b1640b2 Bump version to 3.16rc0
• 3a86113 Update history for 3.16 release
• d4bc9e7 Merge pull request #246 from kjd/python-3.9
• a21d9fc Update deprecation policy
• b464926 Raise minimum Python to 3.9 and modernize typing
• 7f3b15e Explicit example not needed
• 7530c70 Remove unnecessary print()
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Updates requests from 2.34.0 to 2.34.2

Release notes

Sourced from requests's releases.

v2.34.2

2.34.2 (2026-05-14)

• Moved headers input type back to Mapping to avoid invariance issues with MutableMapping and inferred dict types. Users calling Request.headers.update() may need to narrow typing in their code. (#7441)

Full Changelog: https://github.com/psf/requests/blob/main/HISTORY.md#2342-2026-05-14

v2.34.1

2.34.1 (2026-05-13)

Bugfixes

• Widened json input type from dict and list to Mapping and Sequence. (#7436)
• Changed headers input type to MutableMapping and removed None from Request.headers typing to improve handling for users. (#7431)
• Response.reason moved from str | None to str to improve handling for users. (#7437)
• Fixed a bug where some bodies with custom __getattr__ implementations weren't being properly detected as Iterables. (#7433)

New Contributors

• @​k223kim made their first contribution in psf/requests#7433

Full Changelog: https://github.com/psf/requests/blob/main/HISTORY.md#2341-2026-05-13

Changelog

Sourced from requests's changelog.

2.34.2 (2026-05-14)

• Moved headers input type back to Mapping to avoid invariance issues with MutableMapping and inferred dict types. Users calling Request.headers.update() may need to narrow typing in their code. (#7441)

2.34.1 (2026-05-13)

Bugfixes

• Widened json input type from dict and list to Mapping and Sequence. (#7436)
• Changed headers input type to MutableMapping and removed None from Request.headers typing to improve handling for users. (#7431)
• Response.reason moved from str | None to str to improve handling for users. (#7437)
• Fixed a bug where some bodies with custom __getattr__ implementations weren't being properly detected as Iterables. (#7433)

Commits

• 6e83187 v2.34.2
• 84d10f0 Move Request.headers back to Mapping (#7441)
• b7b549b v2.34.1
• e511bc7 Fix mutability issues with headers input types (#7431)
• 5691f59 Update JsonType containers to read-based collections (#7436)
• 2144213 Constrain Response.reason to str (#7437)
• 6404f34 Fix prepare_body stream detection for __getattr__-based file wrappers (#7...
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Updates snowballstemmer from 3.0.1 to 3.1.0

Changelog

Sourced from snowballstemmer's changelog.

Snowball 3.1.0 (2026-05-22)

Compiler changes

• Bug fixes:

  • Fix segmentation fault if -syntax is used on a program with no code.

  • Fix segmentation fault on some assignment syntax errors.

  • Fix bug introduced in v3.0.0 with conversion of among starter. If there were any commands after the among in the same command list then the among itself would get lost. Not triggered by any current algorithms.

  • Clear name field when removing dead assignments. This is visible in the syntax tree shown when command line option -syntax is used, but probably doesn't affect anything otherwise.

• Compiler command-line options:

  • Using - for the Snowball source file is now interpreted as stdin.

  • Improve comments generated by -comments to show more details of the corresponding Snowball code (e.g. variable names, arithmetic expressions, and literal strings).

  • Add -coverage option which enables a code coverage feature. So far this tracks which among strings and functions are exercised, and which grouping characters are exercised. !

  • Support -eprefix for all target languages. This is easy to do and provides a way to deal with externals which collide with keywords in the target language. Our build system now uses -eprefix _ for Python to make the stem external non-public (it is called by BaseStemmer method stemWord()) and we no longer hard-code prefixing Python externals with _.

  • Describe more options in --help output.

  • Sort target language options in --help output.

  • The -o option is now optional. If not specified we now write output(s) to the same filename as the first source, but with a different extension (e.g. path/to/english.sbl -> path/to/english.c and path/to/english.h).

  • The -o option can now optionally include an extension so you can now write -c++ -o path/to/foo.cxx instead of -c++ -o path/to/foo, which can be more convenient (e.g. in make rules) and also provides an easy way to

... (truncated)

Commits

• 77e07c9 Update for 3.1.0
• 4d37f9c Finalise NEWS entry for 3.1.0
• 2d38e20 make update_version now also updates README.rst
• 1596c74 Go: Fix code generated for non-constant hop
• 34d1214 NEWS: Update draft entry
• 65885b5 finnish: Rename things to match algo description
• 5c05f53 finnish: Accept apostrophe instead of VI
• df25742 JS: Generate simpler code for hop by constant
• 27c9355 Add runtime test of hop/next
• 2508d20 Add test coverage for hop 1->next canonicalisation
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