fix: replace protocol-relative // URLs with explicit https://

internal/vociferate/vociferate.go

@@ -541,10 +541,10 @@ func addChangelogLinks(text, repoURL, rootDir string) string {
 func displayURL(url string) string {
 	trimmed := strings.TrimSpace(url)
 	if strings.HasPrefix(trimmed, "https://") {
-		return "//" + strings.TrimPrefix(trimmed, "https://")
+		return trimmed
 	}
 	if strings.HasPrefix(trimmed, "http://") {
-		return "//" + strings.TrimPrefix(trimmed, "http://")
+		return "https://" + strings.TrimPrefix(trimmed, "http://")
 	}
 	return trimmed
 }