refactor(gh): tweak workflow

.github/scripts/utility.mts

@@ -102,6 +102,17 @@ export function escapeMdTableCell(value: string) {
 	return String(value).replaceAll('|', '\\|').replaceAll('\n', '<br>');
 }
 
+export function formatMs(value: number | null | undefined) {
+	if (value == null || !Number.isFinite(value)) return '-';
+	if (value >= 1_000) return `${formatNumber(value / 1_000)} s`;
+	return `${formatNumber(value)} ms`;
+}
+
+export function formatSecondsAsMs(value: number | null | undefined) {
+	if (value == null || !Number.isFinite(value)) return '-';
+	return formatMs(value * 1_000);
+}
+
 export function formatColoredDelta(delta: number, text: (value: number) => string, colorThreshold = 0) {
 	if (delta === 0) return text(0);
 	const sign = delta > 0 ? '+' : '-';