Update aegea dependency to v2.7.9
Update aegea dependency to v2.7.9

Incorporates https://github.com/kislyuk/aegea/commit/b1805c4
chanzuckerberg/idseq-web,chanzuckerberg/idseq-web,chanzuckerberg/idseq-web,chanzuckerberg/idseq-web,chanzuckerberg/idseq-web