build: update libraries (#3312)

* bump body-parser and express in /client
* bump serve-static and express in /client
* bump path-to-regexp and express in /server
* bump send and express in /server

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Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: lorenzo-cavazzi