Bump terser from 4.8.0 to 5.3.0

[dependabot-preview]

Bumps terser from 4.8.0 to 5.3.0.

Changelog

Sourced from terser's changelog.

v5.3.0

• Fixed a crash when compressing object spreads in some cases
• Fixed compiletime evaluation of optional chains (caused typeof a?.b to always return "object")
• domprops has been updated to contain every single possible prop

v5.2.1

• The parse step now doesn't accept an ecma option, so that all ES code is accepted.
• Optional dotted chains now accept keywords, just like dotted expressions (foo?.default)

v5.2.0

• Optional chaining syntax is now supported.
• Consecutive await expressions don't have unnecessary parens
• Taking the variable name's length (after mangling) into consideration when deciding to inline

v5.1.0

• import.meta is now supported
• Typescript typings have been improved

v5.0.0

• in operator now taken into account during property mangle.
• Fixed infinite loop in face of a reference loop in some situations.
• Kept exports and imports around even if there's something which will throw before them.
• The main exported bundle for commonjs, dist/bundle.min.js is no longer minified.

v5.0.0-beta.0

• BREAKING: minify() is now async and rejects a promise instead of returning an error.
• BREAKING: Internal AST is no longer exposed, so that it can be improved without releasing breaking changes.
• BREAKING: Lowest supported node version is 10
• BREAKING: There are no more warnings being emitted
• Module is now distributed as a dual package - You can import and require() too.
• Inline improvements were made

Commits

• c70f4b1 5.3.0
• f306199 update changelog
• 501afef fix failure case when evaluating an optional chain. Closes #806
• 6b6cb9f add note about node version to CONTRIBUTING.md
• fc1ea2d Added note about no sync (#793)
• a7c1673 update domprops from FF 82.0a1, Chrome 84.0.4147.89 (#811)
• ac292b8 do not inline function declarations into default exports, as they cannot be t...
• 587bb71 fix prop.computed_key crash. Closes #805
• 9940e1f Update LICENSE
• 4e3ca5d 5.2.1
• Additional commits viewable in compare view

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[dependabot-preview]

Superseded by #175.