Update dependency terser to v5.31.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
terser (source)	5.30.4 -> 5.31.0

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Release Notes

terser/terser (terser)

v5.31.0

Compare Source

• Sync up property mangler exceptions with current contents of Firefox and Chrome environments
• Add more webcomponent properties to property mangler exceptions (#​1525)
• Drop non-nullish constants in ...spreads in objects (#​1141)

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