disabling cla action for now

[sumanth-lingappa]

Disabling CLA github action till the questions below issues gets answered.

• [BUG] How to use this action on a protected branch? contributor-assistant/github-action#150
• [QUESTION] why do we need to store the signatures in the repo? contributor-assistant/github-action#151

[github-actions]

CLA Assistant Lite bot:
Thank you for your submission, we really appreciate it. Like many open-source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution. You can sign the CLA by just posting a Pull Request Comment same as the below format.

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I have read the CLA Document and I hereby sign the CLA

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_{You can retrigger this bot by commenting recheck in this Pull Request}