fix: use newer qson to add support for escaped = (equals) signs

Equal signs should be escaped - %3D - in order to be used in values.

plugins/logs/logs.go

@@ -9,7 +9,7 @@ import (
 	"strings"
 
 	"github.com/dokku/dokku/plugins/common"
-	"github.com/joncalhoun/qson"
+	"github.com/fastfishio/qson"
 )
 
 // VectorSink is a map of vector sink properties
@@ -84,36 +84,13 @@ func SinkValueToConfig(appName string, sinkValue string) (VectorSink, error) {
 	query := u.RawQuery
 	query = strings.TrimPrefix(query, "&")
 
-	// Parse query parameters using Go's standard library instead of qson
-	// This correctly handles '=' signs in parameter values
-	values, err := url.ParseQuery(query)
+	b, err := qson.ToJSON(query)
 	if err != nil {
 		return data, err
 	}
 
-	// Convert url.Values to the expected nested map structure
-	data = make(VectorSink)
-	for key, valueList := range values {
-		if len(valueList) > 0 {
-			// Handle nested keys like "auth[token]" -> {"auth": {"token": "value"}}
-			if strings.Contains(key, "[") && strings.HasSuffix(key, "]") {
-				// Parse nested key structure
-				parts := strings.SplitN(key, "[", 2)
-				parentKey := parts[0]
-				childKey := strings.TrimSuffix(parts[1], "]")
-				
-				// Ensure parent exists as a map
-				if data[parentKey] == nil {
-					data[parentKey] = make(map[string]interface{})
-				}
-				if parentMap, ok := data[parentKey].(map[string]interface{}); ok {
-					parentMap[childKey] = valueList[0]
-				}
-			} else {
-				// Simple key-value pair
-				data[key] = valueList[0]
-			}
-		}
+	if err := json.Unmarshal(b, &data); err != nil {
+		return data, err
 	}
 
 	data["type"] = u.Scheme