Update twig/twig requirement from ^3.1 to ^3.2

[dependabot-preview]

Updates the requirements on twig/twig to permit the latest version.

Changelog

Sourced from twig/twig's changelog.

3.2.1 (2021-01-05)

• Fix extra bundle compat with older versions of Symfony

3.2.0 (2021-01-05)

• Add the Cache extension in the "extra" repositories: "cache" tag
• Add "registerUndefinedTokenParserCallback"
• Mark built-in node visitors as @internal
• Fix "odd" not working for negative numbers

3.1.1 (2020-10-27)

• Fix "include(template_from_string())"

3.1.0 (2020-10-21)

• Fix sandbox support when using "include(template_from_string())"
• Make round brackets optional for one argument tests like "same as" or "divisible by"
• Add support for ES2015 style object initialisation shortcut { a } is the same as { 'a': a }

3.0.5 (2020-08-05)

• Fix twig_compare w.r.t. whitespace trimming
• Fix sandbox not disabled if syntax error occurs within {% sandbox %} tag
• Fix a regression when not using a space before an operator
• Restrict callables to closures in filters
• Allow trailing commas in argument lists (in calls as well as definitions)

3.0.4 (2020-07-05)

• Fix comparison operators
• Fix options not taken into account when using "Michelf\MarkdownExtra"
• Fix "Twig\Extra\Intl\IntlExtension::getCountryName()" to accept "null" as a first argument
• Throw exception in case non-Traversable data is passed to "filter"
• Fix context optimization on PHP 7.4
• Fix PHP 8 compatibility
• Fix ambiguous syntax parsing

3.0.3 (2020-02-11)

• Add a check to ensure that iconv() is defined

3.0.2 (2020-02-11)

• Avoid exceptions when an intl resource is not found
• Fix implementation of case-insensitivity for method names

3.0.1 (2019-12-28)

... (truncated)

Commits

• f795ca6 Prepare the 2.14.3 release
• 151d198 Update CHANGELOG
• 6506035 Merge branch '2.x' into 3.x
• a0e2cc2 Bump version
• 8bc568d Prepare the 2.14.3 release
• 3c4fe43 Fix compat with older Symfony versions
• 24fc19a Merge branch '2.x' into 3.x
• 33a9f2e bug #3464 Fix compat with older Symfony versions (fabpot)
• 7656536 bug #3463 Twig extra bundle now requires twig 3.2 (sylvia-vdv)
• f4e1429 Fix compat with older Symfony versions
• Additional commits viewable in compare view

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