Bump flatted and stylelint

[dependabot]

Bumps flatted to 3.4.2 and updates ancestor dependency stylelint. These dependencies need to be updated together.

Updates flatted from 2.0.2 to 3.4.2

Commits

• 3bf0909 3.4.2
• 885ddcc fix CWE-1321
• 0bdba70 added flatted-view to the benchmark
• 2a02dce 3.4.1
• fba4e8f Merge pull request #89 from WebReflection/python-fix
• 5fe8648 added "when in Rome" also a test for PHP
• 53517ad some minor improvement
• b3e2a0c Fixing recursion issue in Python too
• c4b46db Add SECURITY.md for security policy and reporting
• f86d071 Create dependabot.yml for version updates
• Additional commits viewable in compare view

Updates stylelint from 13.6.1 to 13.13.1

Changelog

Sourced from stylelint's changelog.

13.13.1 - 2021-05-01

• Fixed: invalid JSON for max-warnings option (#5267).
• Fixed: no-invalid-position-at-import-rule false positives for dollar variables (#5264).

13.13.0 - 2021-04-24

• Added: no-invalid-position-at-import-rule rule (#5202).
• Added: no-irregular-whitespace rule (#5209).
• Added: selector-disallowed-list rule (#5239).
• Added: selector-attribute-quotes autofix (#5248).
• Added: ignore: ["inside-function"] to declaration-property-unit-allowed-list (#5194).
• Fixed: color-no-hex false positives for CSS-in-JS objection notation (#5186).
• Fixed: font-family-no-missing-generic-family-keyword false positives for variables (#5240).
• Fixed: length-zero-no-unit autofix removing trailing zeroes and comments (#5256).
• Fixed: length-zero-no-unit false positives for level 4 math functions (#5203).
• Fixed: length-zero-no-unit false positives for functions inside of math functions (#5245).

13.12.0 - 2021-03-06

• Added: named-grid-areas-no-invalid rule (#5167).
• Added: ignore: ["single-declaration"] to declaration-block-trailing-semicolon (#5165).
• Fixed: *-no-unknown false positives (#5158).
• Fixed: selector-pseudo-class-no-unknown false positives for :autofill (#5171).

13.11.0 - 2021-02-20

• Added: exceptions and severity options to report* configuration object properties (#5143).

13.10.0 - 2021-02-11

• Added: ignoreDisables, reportNeedlessDisables, reportInvalidScopeDisables and reportDescriptionlessDisables configuration object properties (#5126).
• Added: declaration-block-no-duplicate-custom-properties rule (#5125).
• Fixed: alpha-value-notation false negatives for CSS Variables (#5130).

13.9.0 - 2021-01-19

• Added: TAP formatter (#5062).
• Fixed: incorrect exit code when using --report options (#5079).
• Fixed: color-hex-case false negatives for css-in-js object notation (#5101).
• Fixed: color-hex-length false negatives for css-in-js object notation (#5106).
• Fixed: selector-attribute-name-disallowed-list false positives for valueless attribute selectors (#5060).

13.8.0 - 2020-11-17

• Deprecated: StylelintStandaloneReturnValue.reportedDisables, .descriptionlessDisables, .needlessDisables, and .invalidScopeDisables. .reportedDisables will always be empty and the other properties will always be undefined, since these errors now show up in .results instead (#4973).
• Added: disable comments that are reported as errors for various reasons are now reported as standard lint errors rather than a separate class of errors that must be handled specially (#4973).
• Added: comment-pattern rule (#4962).
• Added: selector-attribute-name-disallowed-list rule (#4992).
• Added: ignoreAtRules[] to property-no-unknown (#4965).

... (truncated)

Commits

• 16b4595 13.13.1
• ef67472 Prepare 13.13.1
• 4d8ae05 Update deps
• 278feba Update CHANGELOG.md
• 571fde1 Fix invalid json for max warnings option (#5267)
• 2e90b96 Fix false positives for dollar variables in no-invalid-position-at-import-rul...
• c52f9ae Refactor lib/__tests__/standalone-fix.test.js (#5270)
• 939c799 Add test against Node.js 16 (#5269)
• 361c070 Refactor cli.test.js (#5266)
• d034cc2 13.13.0
• Additional commits viewable in compare view

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