K8SPG-1019 Apply Go 1.26 code improvements using go fix #6089

Job	Run time
runner / suggester / golangci-lint	2m 59s
runner / suggester / goimports-reviser	30s
e2e-tests release_versions image availability	3m 15s
runner / alex	36s
runner / misspell	1m 55s
runner / manifests	1m 49s
runner / suggester / shfmt	26s
runner / suggester / gofmt	7s
runner / shellcheck	10s
	11m 47s

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