clientdetails: handle error interfaces in `Details` somewhat #16326

Job	Run time
🧹 cloud-cleaner-is-enabled	1s
🔍 Check for valid snapshot urls	49s
🗄 DB tests	1m 0s
🔍 Check for missing or unused runner repos	17s
Gitlab CI trigger helper	3s
⌨ Golang Lint	2m 47s
🎀 kube-linter	22s
📦 Packit config lint	1m 4s
🔍 Check source preparation	1m 7s
🐍 Lint python scripts	3m 15s
📦 RPMlint	1m 11s
🐚 Shellcheck	23s
🛃 Unit tests	3m 59s
	16m 18s

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