fix(InputNumber): fix decimal value on spin (#8382)

Author: selfplusplus2

components/lib/inputnumber/InputNumber.js

@@ -213,9 +213,13 @@ export const InputNumber = React.memo(
             return null;
         };
 
-        const addWithPrecision = (base, increment, precision = 10) => {
-            return Math.round((base + increment) * precision) / precision;
-        };
+        const addWithPrecision = (base, increment) => {
+			const baseDec = (base.toString().split(".")[1] || "").length;
+			const incDec = (increment.toString().split(".")[1] || "").length;
+			const precision = Math.pow(10, Math.max(baseDec, incDec));
+			
+			return Math.round((base + increment) * precision) / precision;
+		};
 
         const repeat = (event, interval, dir) => {
             let i = interval || 500;