chore(package): update nock to version 12.0.0
chore(package): update nock to version 12.0.0

BREAKING CHANGE: Require node>=10.13 for nock@^12.0.0.

Signed-off-by: Kevin Locke <ffb4761cba839470133bee36aeb139f58d7dbaa9@kevinlocke.name>

kevinoid/swagger-spec-validator,kevinoid/swagger-spec-validator,kevinoid/swagger-spec-validator