Fix validator security vulnerability CVE in isLength()

[Copilot]

The validator package before 13.15.22 has a vulnerability in isLength() that fails to account for Unicode variation selectors (\uFE0F, \uFE0E), causing improper string length calculation. This can lead to data truncation, buffer overflows, or DoS.

Changes

• Update express-validator from ^7.2.1 to ^7.3.1
• This pulls in [email protected] (patched) instead of [email protected] (vulnerable)

Original prompt

Versions of the package validator before 13.15.22 are vulnerable to Incomplete Filtering of One or More Instances of Special Elements in the isLength() function that does not take into account Unicode variation selectors (\uFE0F, \uFE0E) appearing in a sequence which lead to improper string length calculation. This can lead to an application using isLength for input validation accepting strings significantly longer than intended, resulting in issues like data truncation in databases, buffer overflows in other system components, or denial-of-service.

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