Add fuzz-testing

[harshitasao]

What would you like to be added:
Fuzz testing or Fuzzing is a Black Box software testing technique, which basically consists in finding implementation bugs using malformed/semi-malformed data injection in an automated fashion.

Integrate the project with OSS-Fuzz by following the instructions here.

Part of #5391

Why is this needed:
To increase the security posture of the project.

Maintainers help is highly appreciated. For example, helping in identifying the components where fuzz testing will be added.