fix(deps): update dependency dompurify to ^2.5.4

[uicontent]

This PR contains the following updates:

Package	Type	Update	Change	Pending
dompurify	dependencies	patch	^2.5.0 -> ^2.5.4	2.5.5

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Release Notes

cure53/DOMPurify (dompurify)

v2.5.4: DOMPurify 2.5.4

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• Fixed a bug with latest isNaN checks affecting MSIE, thanks @​tulach
• Fixed the tests for MSIE and fixed related test-runner

v2.5.3: DOMPurify 2.5.3

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• Fixed several mXSS variations found by and thanks to @​kevin-mizu & @​Ry0taK
• Added better configurability for comment scrubbing default behavior
• Added better hardening against Prototype Pollution attacks, thanks @​kevin-mizu
• Fixed some smaller issues in README and other documentation

v2.5.2: DOMPurify 2.5.2

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• Addressed and fixed a mXSS variation found by @​kevin-mizu
• Addressed and fixed a mXSS variation found by Adam Kues of Assetnote
• Updated tests for older Safari and Chrome versions

v2.5.1: DOMPurify 2.5.1

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• Fixed an mXSS sanitizer bypass reported by @​icesfont
• Added new code to track element nesting depth
• Added new code to enforce a maximum nesting depth of 255
• Added coverage tests and necessary clobbering protections

Note that this is a security release and should be upgraded to immediately. Please also note that further releases may follow as the underlying vulnerability is apparently new and further variations may be discovered.

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