Bump psycopg2-binary from 2.7.6.1 to 2.7.7
Bump psycopg2-binary from 2.7.6.1 to 2.7.7

Bumps [psycopg2-binary](http://initd.org/psycopg/) from 2.7.6.1 to 2.7.7.

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
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