Update dependency wikimedia/less.php to v3.2.1

This MR contains the following updates:

Package	Type	Update	Change
wikimedia/less.php (source)	require	minor	3.1.0 -> 3.2.1

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Release Notes

wikimedia/less.php

v3.2.1

Compare Source

• All changes
• Tree_Ruleset: Fix support for nested parent selectors (Timo Tijhof) T204816
• Fix ParseError when interpolating variable after colon in selector (Timo Tijhof) T327163
• Functions: Fix "Undefined property" warning on bad minmax arg
• Tree_Call: Include previous exception when catching functions (Robert Frunzke)

v3.2.0

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• All changes
• Fix "Implicit conversion" PHP 8.1 warnings (Ayokunle Odusan)
• Fix "Creation of dynamic property" PHP 8.2 warnings (Bas Couwenberg)
• Fix "Creation of dynamic property" PHP 8.2 warnings (Rajesh Kumar)
• Tree_Url: Add support for "Url" type to Parser::getVariables() (ciroarcadio) #​51
• Tree_Import: Add support for importing URLs without file extension (Timo Tijhof) #​27

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