Bump serialize-javascript and mocha

Bump elliptic from 6.5.4 to 6.6.1

Bump elliptic from 6.5.4 to 6.6.0

Bump elliptic from 6.5.4 to 6.5.7

Bump braces and gulp

Bump follow-redirects from 1.6.1 to 1.15.6

Bump follow-redirects from 1.6.1 to 1.15.4

Bump browserify-sign from 4.2.1 to 4.2.2

Bump minimatch from 3.0.4 to 3.1.2

Bump nanoid from 3.1.23 to 3.3.1