Update dependency twig/twig to v3.16.0

This MR contains the following updates:

Package	Type	Update	Change
twig/twig (source)	require	minor	3.15.0 -> 3.16.0

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Release Notes

twigphp/Twig (twig/twig)

v3.16.0

Compare Source

• Deprecate InlinePrint
• Fix having macro variables starting with an underscore
• Deprecate not passing a Source instance to TokenStream
• Deprecate returning null from TwigFilter::getSafe() and TwigFunction::getSafe(), return [] instead

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