Please update bundled Expat from 2.4.1 to 2.4.3 with security fixes

Please update the bundled copy of Expat at Utilities/cmexpat/lib to version 2.4.3 with security fixes. Please check the change log of Expat for more details.

Thank you!

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Related:

• #16997 (closed)
• #17138 (closed)
• #19437 (closed)
• #19955 (closed)
• #21272 (closed)
• #22231 (closed)