logilab-astng #123056 Hashlib brain classes are missing methods [validation pending]

The hashlib brain classes are missing some methods:
* digest
* update

priorityminor
typebug
done in0.24.3
load left0.000
closed by#7fdc570abc61 Add missing modules in py2stdlib brain hashlib. Closes #123056
patchAdd missing modules in py2stdlib brain hashlib. [applied]