[C][Client] Free the variable with the data type "byteArray" same as "string"

[ityuhui]

This is a follow-up of PR #10034.

This PR will free the variable with the data type "byteArray" same as "string" in the function *_free() .

Hi @zhemant @wing328 @michelealbano

Could you please review this PR ? Thanks.

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[wing328]

LGTM but I didn't test it locally.