Bump idna from 3.19 to 3.20

[dependabot]

Bumps idna from 3.19 to 3.20.

Release notes

Sourced from idna's releases.

v3.20

• Update to Unicode 18.0.0.
• Better enforcement of the domain length limit in the incremental codec.
• Add support for Python 3.15.

Changelog

Sourced from idna's changelog.

3.20 (2026-09-17)

• Update to Unicode 18.0.0.
• Better enforcement of the domain length limit in the incremental codec.
• Add support for Python 3.15.

Commits

• d55e65e Release 3.20
• 0c0824a Pre-release 3.20rc0
• bd7c316 Note Python 3.15 support in the 3.20 changelog
• b6cce85 Merge pull request #276 from kjd/unicode-18
• 9a4bc59 Update to Unicode 18.0.0
• dfab5a0 Merge branch 'python-3.15'
• 417c354 Read the latest Unicode version from the DerivedAge.txt header instead of the...
• cd17392 Merge pull request #274 from kjd/fix-decode-length-check
• c5796d7 Skip the decode round-trip check for domains past encode's length limit
• d6ee690 Update to Python 3.15 release candidate in CI and add trove classifier
• Additional commits viewable in compare view

[github-actions]

✅MegaLinter analysis: Success

Descriptor	Linter	Files	Fixed	Errors	Max errors	Warnings	Elapsed time
✅ COPYPASTE	jscpd	yes		no		no	6.98s
✅ JSON	prettier	7	0	0		0	0.72s
✅ JSON	v8r	7		0		0	4.81s
✅ MARKDOWN	markdownlint	68	0	0		0	2.27s
✅ MARKDOWN	markdown-table-formatter	68	0	0		0	0.48s
✅ PYTHON	black	2040	0	0		0	59.51s
✅ PYTHON	isort	2040	0	0		0	2.99s
✅ REPOSITORY	betterleaks	yes		no		no	1.26s
✅ REPOSITORY	checkov	yes		no		no	36.48s
✅ REPOSITORY	git_diff	yes		no		no	0.14s
✅ REPOSITORY	secretlint	yes		no		no	5.87s
✅ REPOSITORY	syft	yes		no		no	2.86s
✅ REPOSITORY	trivy-sbom	yes		no		no	3.11s
✅ YAML	prettier	11	0	0		0	0.7s
✅ YAML	v8r	11		0		0	14.22s
✅ YAML	yamllint	11		0		0	1.13s

Notices

⚠️ Your configuration references items that have been removed from MegaLinter and are ignored: MAKEFILE_CHECKMAKE. See Removed linters to find their replacements.

See detailed reports in MegaLinter artifacts

Your project could benefit from a custom flavor, which would allow you to run only the linters you need, and thus improve runtime performances. (Skip this info by defining FLAVOR_SUGGESTIONS: false)

• Documentation: Custom Flavors
• Command: npx mega-linter-runner@10.1.0 --custom-flavor-setup --custom-flavor-linters PYTHON_BLACK,PYTHON_ISORT,COPYPASTE_JSCPD,JSON_V8R,JSON_PRETTIER,MARKDOWN_MARKDOWNLINT,MARKDOWN_MARKDOWN_TABLE_FORMATTER,REPOSITORY_CHECKOV,REPOSITORY_GIT_DIFF,REPOSITORY_BETTERLEAKS,REPOSITORY_SECRETLINT,REPOSITORY_SYFT,REPOSITORY_TRIVY_SBOM,YAML_PRETTIER,YAML_YAMLLINT,YAML_V8R

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