Summary: This adds the CLA. Note that we will switch over the the CNCF CLA after we get into sandbox.

Test Plan: N/A

Reviewers: vihang, michelle

Reviewed By: vihang

Differential Revision: https://phab.corp.pixielabs.ai/D8118

GitOrigin-RevId: 75e57be8a1219ba35a2793a2451f58347ec3f63b