Support OSS-Fuzz

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Describe the feature you'd like supported

We recently onboarded OSSF Scoreboard security checks and the last one we have left is related to onboarding support for OSS-Fuzz.

Proposed solution

Onboard OSS-Fuzz.

Additional context

https://github.com/microsoft/msquic/security/code-scanning/156?query=ref%3Arefs%2Fheads%2Fmain