Update tools/3dtrees_standardization/standard.xml

Co-authored-by: Björn Grüning <bjoern@gruenings.eu>

Author: kgerb

tools/3dtrees_standardization/standard.xml

@@ -42,7 +42,7 @@
                 <param argument="--min-density" type="integer" min="1" max="10000" value="10" 
                        label="Minimum Point Density" 
                        help="Minimum acceptable point density in points per square meter. Default: 10 pts/m²"/>
-                <param name="removeable_attributes" type="text" value="" optional="true"
+                <param argument="--removeable_attributes" type="text" value="" optional="true"
                        label="Attributes to Remove" 
                        help="Space-separated list of attribute names to remove (e.g., 'Intensity UserData'). Leave empty for auto-detection."/>
             </when>