Refactor return and goto statements (valkey-io#945)

Consolidate the cleanup of local variables to a single point within the
method, ensuring proper resource management and p
reventing memory leaks or double-free issues.

Previoslly descused here:
- valkey-io#60 (comment)
- valkey-io#60 (comment)

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Signed-off-by: naglera <[email protected]>
Signed-off-by: Amit Nagler <[email protected]>
Co-authored-by: Ping Xie <[email protected]>

Author: 2 people