fix(debug): Check length of wal entry before parsing

[mangalaman93]

Check for the length of wal entry's data before parsing it for key

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[coveralls]

Coverage: 64.042% (-0.4%) from 64.401% when pulling 4cb7c99 on aman/debug into 4c1b575 on main.

[joshua-goldstein]

Looks like this is a debug tool and instead of panicking we want to print the key.

[skrdgraph]

looks good 👍