chore(deps): update dependency terser to v5.19.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
terser (source)	5.16.9 -> 5.19.1

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Release Notes

terser/terser (terser)

v5.19.1

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• Better avoid outputting </script> and HTML comments.
• Fix unused variables in class static blocks not being dropped correctly.
• Fix sourcemap names of methods that are async or static

v5.19.0

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• Allow /*@​__MANGLE_PROP__*/ annotation in object.property, in addition to property declarations.

v5.18.2

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• Stop using recursion in hoisted defuns fix.

v5.18.1

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• Fix major performance issue caused by hoisted defuns' scopes bugfix.

v5.18.0

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• Add new /*@​__MANGLE_PROP__*/ annotation, to mark properties that should be mangled.

v5.17.7

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• Update some dependencies
• Add consistent sorting for v RegExp flag
• Add inert DOM attribute to domprops

v5.17.6

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• Fixes to mozilla AST input and output, for class properties, private properties and static blocks
• Fix outputting a shorthand property in quotes when safari10 and ecma=2015 options are enabled
• configurable and enumerable, used in Object.defineProperty, added to domprops (#​1393)

v5.17.5

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• Take into account the non-deferred bits of a class, such as static properties, while dropping unused code.

v5.17.4

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• Fix crash when trying to negate a class (!class{})
• Avoid outputting comments between yield/await and its argument
• Fix detection of left-hand-side of assignment, to avoid optimizing it like any other expression in some edge cases

v5.17.3

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• Fix issue with trimming a static class property's contents accessing the class as this.

v5.17.2

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• Be less conservative when detecting use-before-definition of var in hoisted functions.
• Support unusual (but perfectly valid) initializers of for-in and for-of loops.
• Fix issue where hoisted function would be dropped if it was after a continue statement

v5.17.1

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• Fix evaluating .length when the source array might've been mutated

v5.17.0

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• Drop vestigial = undefined default argument in IIFE calls (#​1366)
• Evaluate known arrays' .length property when statically determinable
• Add @__KEY__ annotation to mangle string literals (#​1365)

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