Fix non-constant format string errors

[chajath]

Fix vet error due to: golang/go#60529
See https://tip.golang.org/doc/go1.24#:~:text=Vet%C2%B6,%2360529.

Go build on 1.22 and 1.23 are not blocked per se as vet of the older golang doesn't check for the error, but it's nice-to-have fix anyway and makes the code forward-compatible with 1.24.

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[mr0re1]

Hi @chajath , thank you for PR ! I left one comment, do you mind to address it? Otherwise looks good.

[mr0re1]

/gcbrun

[mr0re1]

/gcbrun