Better error format for K8S apply stage

[khanhtc1202]

What would you like to be added:

This error is shown in the stage log. Need to found out and update error format for all error like this

 (%!w(*fmt.wrapError=&{failed to apply:  (signal: killed) 0xc0090b8dc0}))

Why is this needed:

[kentakozuka]

Partially resolved. https://github.com/pipe-cd/pipecd/pull/4398

[kentakozuka]

Search with regex; ^.*fmt\.Errorf\(.*%v.*$.

[saka2jp]

👍