Bump twig/twig from 3.0.4 to 3.4.0 in /mailer

[dependabot[bot]]

Bumps twig/twig from 3.0.4 to 3.4.0.

Changelog

Sourced from twig/twig's changelog.

3.4.0 (2022-05-22)

• Add support for named closures

3.3.10 (2022-04-06)

• Enable bytecode invalidation when auto_reload is enabled

3.3.9 (2022-03-25)

• Fix custom escapers when using multiple Twig environments
• Add support for "constant('class', object)"
• Do not reuse internally generated variable names during parsing

3.3.8 (2022-02-04)

• Fix a security issue when in a sandbox: the sort filter must require a Closure for the arrow parameter
• Fix deprecation notice on round
• Fix call to deprecated convertToHtml method

3.3.7 (2022-01-03)

• Allow more null support when Twig expects a string (for better 8.1 support)
• Only use Commonmark extensions if markdown enabled

3.3.6 (2022-01-03)

• Only use Commonmark extensions if markdown enabled

3.3.5 (2022-01-03)

• Allow CommonMark extensions to easily be added
• Allow null when Twig expects a string (for better 8.1 support)
• Make some performance optimizations
• Allow Symfony translation contract v3+

3.3.4 (2021-11-25)

• Bump minimum supported Symfony component versions
• Fix a deprecated message

3.3.3 (2021-09-17)

• Allow Symfony 6
• Improve compatibility with PHP 8.1
• Explicitly specify the encoding for mb_ord in JS escaper

3.3.2 (2021-05-16)

• Revert "Throw a proper exception when a template name is an absolute path (as it has never been supported)"

... (truncated)

Commits

• ed19f4b Prepare the 3.4.0 release
• 3fdd3b9 Merge branch '2.x' into 3.x
• 639c883 Update CHANGELOG
• 9ca7fb8 Merge branch '2.x' into 3.x
• bb64a49 feature #3702 Fix support for named closures (nicolas-grekas)
• 163f074 Fix support for named closures
• b4d6723 Merge branch '2.x' into 3.x
• ab36653 Tweak previous commit
• 6860ca1 minor #3676 [Documentation] Add note about simple string matching (Kern046)
• 5e26ce7 [Documentation] Add note about simple string matching
• Additional commits viewable in compare view

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