package/jquery-validation: security bump to version 1.19.3

package/jquery-validation: security bump to version 1.19.3

Fix CVE-2021-21252: The jQuery Validation Plugin provides drop-in
validation for your existing forms. It is published as an npm package
"jquery-validation". jquery-validation before version 1.19.3 contains
one or more regular expressions that are vulnerable to ReDoS (Regular
Expression Denial of Service).

Update hash of README.md due to changes not related to license

https://github.com/jquery-validation/jquery-validation/releases/tag/1.19.3

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>