benchmarks/ddosify: Update to 0.14.0
ChangeLog: https://github.com/ddosify/ddosify/releases/tag/v0.14.0
Introduce assertions.
Assertion - Verify that the response matches your expectations. Usage:
https://github.com/ddosify/ddosify#assertion
PR: 269611
Reported by: 0xdutra@gmail.com (maintainer)