K8SPG-873: add `env` and `envFrom` fields to backups and restores #5426

Job	Run time
runner / suggester / golangci-lint	3m 0s
runner / alex	34s
runner / misspell	22s
runner / suggester / shfmt	16s
runner / suggester / goimports-reviser	9s
runner / shellcheck	10s
runner / suggester / gofmt	11s
runner / manifests	1m 58s
	6m 40s

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