Add `oss-fuzz`-ing

[06kellyjac]

• Add oss-fuzz actions

See here for docs https://google.github.io/oss-fuzz/getting-started/continuous-integration/#integrating-into-your-repository

[JOSHUAJEBARAJ]

@06kellyjac Would like to pick up and work on Issue before starting with working on the issue I want to confirm few stuffs
I just need to add the yaml file under the workflows directory actions , If it is yes what should be the even trigger should It be the push or every pull request or something else

[06kellyjac]

It can probably have triggers like this, every change to master and PR that has golang related changes
https://github.com/controlplaneio/kubesec/blob/master/.github/workflows/test_unit.yml#L5-L17