clientdetails: handle error interfaces in `Details` somewhat #16322

Job	Run time
🛃 Unit tests	3m 58s
🗄 DB tests	1m 0s
🔍 Check for missing or unused runner repos	14s
🔍 Check for valid snapshot urls	48s
🧹 cloud-cleaner-is-enabled	2s
Gitlab CI trigger helper	3s
⌨ Golang Lint	2m 39s
🎀 kube-linter	18s
📦 Packit config lint	35s
🔍 Check source preparation	1m 12s
🐍 Lint python scripts	55s
📦 RPMlint	1m 22s
🐚 Shellcheck	24s
	13m 30s

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