Update terser requirement from ~4.0.0 to ~4.3.1

[dependabot-preview]

Updates the requirements on terser to permit the latest version.

Changelog

Sourced from terser's changelog.

v4.3.1

• Fixed an issue from 4.3.0 where any block scope within a for loop erroneously had its parent set to the function scopee
• Fixed an issue where compressing IIFEs with argument expansions would result in some parameters becoming undefined
• addEventListener options argument's properties are now part of the DOM properties list.

v4.3.0

• Do not drop computed object keys with side effects
• Functions passed to other functions in calls are now wrapped in parentheses by default, which speeds up loading most modules
• Objects with computed properties are now less likely to be hoisted
• Speed and memory efficiency optimizations
• Fixed scoping issues with try and switch

v4.2.1

• Minor refactors
• Fixed a bug similar to #369 in collapse_vars
• Functions can no longer be inlined into a place where they're going to be compared with themselves.
• reduce_funcs option is now legacy, as using reduce_vars without reduce_funcs caused some weird corner cases. As a result, it is now implied in reduce_vars and can't be turned off without turning off reduce_vars.
• Bug which would cause a random stack overflow has now been fixed.

v4.2.0

• When the source map URL is inline, don't write it to a file.
• Fixed output parens when a lambda literal is the tag on a tagged template string.
• The mangle.properties.undeclared option was added. This enables the property mangler to mangle properties of variables which can be found in the name cache, but whose properties are not known to this Terser run.
• The v8 bug where the toString and source representations of regexes like RegExp("\\\n") includes an actual newline is now fixed.
• Now we're guaranteed to not have duplicate comments in the output
• Domprops updates

v4.1.4

• Fixed a crash when inlining a function into somewhere else when it has interdependent, non-removable variables.

v4.1.3

• Several issues with the reduce_vars option were fixed.
• Starting this version, we only have a dist/bundle.min.js

v4.1.2

• The hotfix was hotfixed

v4.1.1

• Fixed a bug where toplevel scopes were being mixed up with lambda scopes

v4.1.0

... (truncated)

Commits

• eb57c25 4.3.1
• 0dc2218 update changelog
• cc899d8 clean old dependencies
• b544cf0 fix #452 by only setting the catch scope block, not scopes of other things
• 5642786 fix #379 (reduce_vars turning expansions into undefined)
• 68f19a0 update for EventTarget.addEventListener parameter (#450)
• dc9bc8f 4.3.0
• b107115 update changelog
• d0c5217 fix #445 by adjusting AST_Switch's scope
• 11094c1 fix #348 by being more conservative about reducing variables which have redef...
• Additional commits viewable in compare view

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[sbrunner]

@dependabot rebase